Simultaneous Deep Endometriosis Affecting Abdominal Wall and Vermiform Appendix / Endometriosis Simultánea de Pared Abdominal y Apéndice Vermicular

SUMMARY: Endometriosis, defined as the presence of endometrial glands and stroma outside the uterine cavity, is a chronic inflammatory condition that affects between 8 % and 44 % of women of reproductive age. Occasionally it presents as a sensitive mass in the abdominal wall, in relation to a surgical scar. On the other hand, in the most severe stage of endometriosis, intestinal involvement is common, and endometriotic disease of the appendix may be present even in appendices with macroscopically normal appearance. Simultaneous affectation of both locations is very rare. Nevertheless, treatment of choice is the excision of both lesions with safety margins. The aim of this manuscript was to report a case of simultaneous deep endometriosis affecting the total abdominal wall and vermiform appendix, resected in a single surgical procedure, which subsequently required abdominal wall repair with mesh plasty. Since desmoid tumors and endometriosis share similar clinical signs and unspecific imaging exams, both options should be considered in case of abdominal wall mass in female patients of childbearing age, especially if they have a history of uterine-related surgery.

La endometriosis se define como la presencia de glándulas endometriales y estroma fuera del útero. Es una afección crónica que afecta entre el 8 % y el 44 % de las mujeres en edad reproductiva. Ocasionalmente se presenta como una masa sensible en la pared abdominal, en relación con una cicatriz quirúrgica. Por otro lado, en su estadio más grave de la endometriosis, la afectación intestinal es común y puede afectar al apéndice, pudiendo estar presente incluso en apéndices de apariencia macroscópicamente normal. La afectación de ambas localizaciones simultáneamente es muy infrecuente. Sin embargo, el tratamiento de ambas lesiones es su exéresis quirúrgica con márgenes de seguridad. El objetivo de este manuscrito fue reportar un caso de endometriosis profunda simultánea que afectaba la pared abdominal total y el apéndice vermiforme, las que fueron resecadas en un solo tiempo quirúrgico, incluyendo posteriormente reparación de la pared abdominal con uso de malla. Dado que los tumores desmoides y la endometriosis comparten signos clínicos similares y exámenes de imágenes inespecíficos, se deben considerar ambas opciones en caso de masas en la pared abdominal de mujeres en edad fértil, especialmente si tienen antecedentes de cirugía relacionada con el útero.

Manejo expectante de amniocele en paciente con espectro de placenta accreta: reporte de caso / Expectant management of amniocele in a patient with placenta accreta: a case report

Introducción: El amniocele es una hernia del saco amniótico a través de un defecto en la pared del útero, el cual puede deberse a ruptura uterina, secundario a daños preexistentes, anomalías uterinas o en un útero sin cicatrices. Caso clínico: Presentamos el caso de una paciente de 37 años, con antecedente de dos partos por cesárea, a quien en la semana 25,5 de embarazo se le diagnostica por ecografía amniocele en la pared anterior de útero contenido por la vejiga, además de signos ecográficos de acretismo placentario. La posterior realización de resonancia magnética confirma el diagnóstico. Se realiza manejo expectante con estancia continua intrahospitalaria estricta. Resolución obstétrica a las 34 semanas por cesárea, con extracción fetal por fondo uterino sin complicaciones, con posterior realización de histerectomía con placenta in situ. Conclusiones: Este reporte de caso ilustra la importancia de la identificación temprana de esta condición por ser una complicación infrecuente, pero de grave pronóstico fetomaterno en ausencia de atención inmediata.

Introduction: Amniocele is a hernia of the amniotic sac through a defect in the uterine wall, which can be caused by uterine rupture secondary to preexisting damage, uterine anomalies, or a scarless uterus. Case report: We present a case of a 37-year-old patient with a history of two previous cesarean deliveries. At 25.5 weeks of gestation, the diagnosis of amniocele in the anterior uterine wall, contained by the bladder, along with ultrasound signs of placenta accreta, was confirmed through ultrasound. Subsequent magnetic resonance imaging further confirmed the diagnosis. Expectant management with strict continuous intrahospital stay was implemented. Obstetric resolution was achieved at 34 weeks through cesarean delivery, with uncomplicated fetal extraction through the uterine fundus. Subsequently, a hysterectomy was performed with the placenta left in situ. Conclusions: This case report illustrates the importance of early identification of this condition due to its infrequent but serious feto-maternal prognosis in the absence of immediate attention.

Diagnóstico de malformación del desarrollo cortical en embarazo gemelar monocorial: reporte de caso / Diagnosis of malformation of the cortical development in a monochorial twin pregnancy: case report

Introducción: Las malformaciones del desarrollo cortical se deben a alteraciones en la migración del neuroblasto durante la formación de la corteza cerebral. Se desconoce su frecuencia en embarazos monocoriales. Objetivo: Reportar el caso de un embarazo monocorial con diagnóstico de malformación del desarrollo cortical en uno de los fetos y revisar la literatura referente a su diagnóstico y pronóstico. Método: Mujer de 19 años, embarazo monocorial biamniótico de 26 semanas, que acudió con estudio ecográfico y resonancia fetal que evidenció en uno de los fetos asimetría de los hemisferios cerebrales, hipoplasia de la cisura de Silvio izquierda con simplificación del patrón giral por focos de paquigiria y polimicrogiria, con confirmación posnatal de alteración en la migración neuronal asociada a hipoplasia vermiana. Resultados: Se encontraron en la literatura tres casos de embarazo múltiple monocorial con trastorno de la migración neuronal con recién nacidos vivos. Los hallazgos más comunes fueron microcefalia, lisencefalia e hipoplasia cerebelosa. Conclusiones: El diagnóstico prenatal del trastorno de la migración neuronal se realiza con ecografía y resonancia fetal. La más frecuente es la alteración de la migración neuronal tipo II. El pronóstico depende del tipo de alteración; sin embargo, la mayoría de los casos presentan trastornos epileptiformes con alteraciones del neurodesarrollo.

Introduction: Malformations of cortical development are the result from alterations in the neuroblast migration during the cerebral cortex formation. Its frequency in monochorial multiple pregnancies remains unknown. Objective: To report a case of monochorial multiple pregnancy with diagnosis of malformation of the cortical development in one of the fetuses. In addition, to review the literature regarding the diagnosis and prognosis of this entity. Method: A 19-year-old female with a monochorial diamniotic pregnancy of 26 weeks gestation, arrived with an ultrasound anatomy scan visit, and fetal magnetic resonance imaging, we detected asymmetry in the cerebral hemispheres one of the fetuses, hypoplasia of the left sulcus of Sylvius with simplification of the gyrus pattern due to clusters of pachygyria and polymicrogyria. Those findings were confirmed afterbirth, with a definite diagnosis of neuronal migration disorder associated with vermian hypoplasia. Results: Three cases of monochorial pregnancy with neuronal migration disorder with live newborn, common findings like microcephaly, lissencephaly and vermian hypoplasia. Conclusions: Prenatal diagnosis with neuronal migration disorder is done via ultrasound and magnetic resonance imaging. Neuronal migration disorders type II are the most common of them. Prognosis depends on the type of disorder; however, most patients have epileptiform activity and neurodevelopment impairment.

Subcortical Volume Changes in Schizophrenia and Bipolar Disorder: A Quantitative MRI Study

SUMMARY: Volume abnormalities in subcortical structures, including the hippocampus, amygdala, thalamus, caudate, putamen, and globus pallidus have been observed in schizophrenia (SZ) and bipolar disorder (BD), not all individuals with these disorders exhibit such changes. In addition, the specific patterns and severity of volume changes may vary between individuals and at different stages of the disease. The study aims to compare the volumes of these subcortical structures between healthy subjects and individuals diagnosed with SZ or BD. Volumetric measurements of lateral ventricle, globus palllidus, caudate, putamen, hippocampus, and amygdale were made by MRI in 52 healthy subjects (HS), 33 patients with SZ, and 46 patients with BD. Automatic segmentation methods were used to analyze the MR images with VolBrain and MRICloud. Hippocampus, amygdala and lateral ventricle increased in schizophrenia and bipolar disorder patients in comparison with control subjects using MRIcloud. Globus pallidus and caudate volume increased in patients with schizophrenia and bipolar disorder compared control subjects using Volbrain. We suggested that our results will contribute in schizophrenia and bipolar disorder patients that assessment of the sub-cortical progression, pathology, and anomalies of subcortical brain compositions. In patients with psychiatric disorders, VolBrain and MRICloud can detect subtle structural differences in the brain.

Se han observado anomalías de volumen en las estructuras subcorticales, incluidos el hipocampo, la amígdala, el tálamo, el núcleo caudado, el putamen y el globo pálido, en la esquizofrenia (SZ) y el trastorno bipolar (BD); no todos los individuos con estos trastornos presentan tales cambios. Además, los patrones específicos y la gravedad de los cambios de volumen pueden variar entre individuos y en diferentes etapas de la enfermedad. El estudio tuvo como objetivo comparar los volúmenes de estas estructuras subcorticales entre sujetos sanos e individuos diagnosticados con SZ o BD. Se realizaron mediciones volumétricas del ventrículo lateral, globo pálido, núcleo caudado, putamen, hipocampo y amígdala mediante resonancia magnética en 52 sujetos sanos (HS), 33 pacientes con SZ y 46 pacientes con BD. Se utilizaron métodos de segmentación automática para analizar las imágenes de resonancia magnética con VolBrain y MRICloud. El hipocampo, la amígdala y el ventrículo lateral aumentaron en pacientes con esquizofrenia y trastorno bipolar en comparación con sujetos de control que utilizaron MRIcloud. El globo pálido y el núcleo caudado aumentaron en pacientes con esquizofrenia y trastorno bipolar en comparación con los sujetos control que utilizaron Volbrain. Sugerimos que en pacientes con esquizofrenia y trastorno bipolar, nuestros resultados contribuirán a la evaluación de la progresión subcortical, la patología y las anomalías de las composiciones cerebrales subcorticales. En pacientes con trastornos psiquiátricos, VolBrain y MRICloud pueden detectar diferencias estructurales sutiles en el cerebro.

Rotura do tendão semimembranoso ­ Relato de caso de uma rara rotura tendínea / Semimembranous tendon rupture ­ Case report of a rare tendon rupture

Contexto: A rotura da inserção distal do tendão semimembranoso é uma lesão ocasionada no tendão de um dos músculos do grupo isquiotibiais, acarretando dor no joelho. Para o diagnóstico da lesão do tendão semimembranoso, a ressonância magnética é a principal modalidade de imagem. Descrição do caso: Homem de 63 anos acusa dor no joelho esquerdo há 1 semana. Apresenta melhora da dor com repouso e medicação. Ao exame físico, apresenta teste de Waldron positivo e testes de McMurray e Appley negativos, com edema articular, sem hematomas, apresentando limitação à movimentação devido à dor. A ressonância magnética apresenta a rotura do semimembranoso, e o tratamento foi realizado com medicação analgésica e anti-inflamatória. Discussão: Essa rotura é rara, e surge de uma força em valgo em uma perna hiperextendida externamente. O uso de esteroides anabolizantes pode aumentar o risco de rotura do tendão. Contudo, a ultrassonografia é um método de fácil acesso e é cada vez mais utilizada. O diagnóstico é realizado por meio de ressonância magnética. Seu tratamento pode ser realizado com anti-inflamatórios ou reparo cirúrgico. Conclusão: Relatamos um caso de rotura do tendão semimembranoso, composta por uma sintomatologia como dor no joelho, que pode ser tratada com anti-inflamatório ou reparo cirúrgico.

Middle ear lipoma as a mimicker of other diseases: a review of an unusual presentation / Lipoma en el oído medio como un imitador de otras enfermedades: una revisión de una presentación inusual

The finding of a lipoma in the middle ear is much rarer than its occurrence in the external auditory canal or even the inner ear, with fewer than seven cases described in the literature and none of them in Spain or South America. Despite its benign nature, the location of the lipoma may compromise structures that play a significant role in auditory preservation or balance control, necessitating surgical removal as a curative treatment. The main objective of this article is to describe the presentation of lipomas in the middle ear as a possible, although rare, etiology to consider in patients presenting with hearing loss, instability, or both symptoms concurrently, seeking otorhinolaryngological evaluation.

El hallazgo de un lipoma en el oído medio es mucho más raro que su ocurrencia en el canal auditivo externo o incluso en el oído interno, con menos de siete casos descritos en la literatura y ninguno de ellos en España o Sudamérica. A pesar de su naturaleza benigna, la ubicación del lipoma puede comprometer estructuras que desempeñan un papel significativo en la preservación auditiva o en el control del equilibrio, lo que hace necesaria la extirpación quirúrgica como tratamiento curativo. El objetivo principal de este artículo es describir la presentación de los lipomas en el oído medio como una posible, aunque rara, etiología a considerar en pacientes que presentan pérdida de audición, inestabilidad o ambos síntomas simultáneamente, buscando evaluación otorrinolaringológica.

Cochleo-carotid dehiscence as a third window syndrome: a review of an unusual presentation and its clinical-radiological approach / Dehiscencia cócleo-carotídea como síndrome de la tercera ventana: una revisión de una presentación inusual y su enfoque clínico-radiológico

When examining patients who present both fluctuating auditory symptoms and vestibular symptoms, which can be mistaken for an ear disease, it is important to consider cochlear-carotid fistula as a condition that could generate these clinical manifestations. In this case, additional imaging tests should be performed to demonstrate the lack of continuity at that level and rule out other entities. The objective is to describe the cochleo-carotid dehiscence in a 39-year-old woman and propose it as a possible etiology of a third window syndrome, in order to discuss the relationship between clinical findings, neurotologic examination, and magnetic resonance imaging.

Al examinar a pacientes que presentan síntomas auditivos fluctuantes y síntomas vestibu-lares, que pueden ser confundidos con una enfermedad del oído, es importante considerar la fístula coclear-carotídea como una condición que podría generar estas manifestaciones clínicas. En este caso, se deben realizar pruebas de imagen adicionales para demostrar la falta de continuidad en ese nivel y descartar otras entidades. El objetivo es describir la dehiscencia cocleo-carotídea en una mujer de 39 años y proponerla como una posible etiología del síndrome de la tercera ventana, con el fin de discutir la relación entre los hallazgos clínicos, el examen neurotológico y la resonancia magnética.

Síndrome de Brown-Séquard como forma de presentación de mielitis transversa idiopática / Brown-Séquard syndrome as a presentation of idiopathic transverse myelitis

El síndrome de Brown-Séquard es el conjunto de signos y síntomas causado por hemisección medular de diversos orígenes. Puede generarse por múltiples causas; las traumáticas son las más frecuentes. Las causas menos frecuentes son patología inflamatoria, isquémica, tumoral o infecciosa. Se presenta un niño de 12 años, con instauración aguda y progresiva de un síndrome de hemisección medular derecho, con parálisis hipo/arrefléctica homolateral y afectación de sensibilidad termoalgésica contralateral. En la resonancia magnética de médula espinal, se observó compromiso inflamatorio en hemimédula derecha a nivel de segunda y tercera vértebras torácicas. Con diagnóstico de mielitis transversa idiopática, inició tratamiento con corticoide intravenoso a altas dosis con evolución clínica favorable y restitución de las funciones neurológicas.

Brown-Séquard syndrome refers to a set of signs and symptoms caused by hemisection of the spinal cord from various sources. It may have multiple causes; traumatic injuries are the most frequent ones. The less common causes include inflammation, ischemia, tumors, or infections. This report is about a 12-year-old boy with an acute and progressive course of right hemisection of the spinal cord, with ipsilateral hypo/areflexic paralysis and contralateral loss of thermalgesic sensation. The MRI of the spinal cord showed inflammation in the right side of the spinal cord at the level of the second and third thoracic vertebrae. The patient was diagnosed with idiopathic transverse myelitis and was started on intravenous high-dose corticosteroids; he showed a favorable clinical course and recovered neurological functions.

Utilidad del complejo posterior para el diagnóstico prenatal de sintelencefalia / Utility of the posterior complex for the prenatal diagnosis of syntelencephaly

Introducción y objetivo: Demostrar el valor del plano axial del complejo posterior, como apoyo a la detección antenatal de sintelencefalia, variante de holoprosencefalia. Método: Se incluyeron todas las pacientes con diagnóstico de sintelencefalia evaluadas desde el año 2008. En todos los casos se consignaron los datos clínicos, de neurosonografía (NSG), de resonancia magnética (RM) y genética. Resultados: Cuatro casos fueron diagnosticados en el segundo trimestre y en todos se realizó estudio genético y RM. Tres tuvieron en su evolución anomalías extra-SNC y dos de ellos alteraciones cromosómicas, una de ellas incompatible con la vida extrauterina. Lo hallazgos descritos en neuroimagen para esta afección fueron detectados en la NSG, con una excelente correlación con RM, ya fuera esta última realizada en periodo fetal o posnatal. Conclusión: El diagnóstico prenatal de variantes de holoprosencefalia es difícil, considerando la existencia de una fusión medial más acotada que en las formas clásicas. El presente estudio demuestra la utilidad del plano del complejo posterior para la sospecha diagnóstica de sintelencefalia.

Introduction and objective: To demonstrate the value of the axial plane of the posterior complex, as a clue for the antenatal detection of synthelencephaly, a variant of holoprosencephaly. Method: All patients diagnosed with syntelencephaly evaluated since 2008 were included. In all cases, clinical, neurosonography (NSG), magnetic resonance imaging (MRI) and genetic data were recorded. Results: Four cases were diagnosed in the second trimester and in all of them a genetic study and MRI were performed. Three had extra-CNS anomalies in their evolution and two of them chromosomal anomalies, one of them incompatible with extrauterine life. Neuroimaging findings described for this condition were detected by NSG, with an excellent correlation with MRI, whether the latter was performed in the fetal or postnatal period. Conclusion: The prenatal diagnosis of holoprosencephaly variants is difficult, considering the existence of a more limited medial fusion than in the classical forms. The present study demonstrates the usefulness of the posterior complex plane for the diagnostic suspicion of synthelencephaly.

Circulating biomarker- and magnetic resonance-based nomogram predicting long-term outcomes in dilated cardiomyopathy / 中华医学杂志(英文版)

BACKGROUND@#Dilated cardiomyopathy (DCM) has a high mortality rate and is the most common indication for heart transplantation. Our study sought to develop a multiparametric nomogram to assess individualized all-cause mortality or heart transplantation (ACM/HTx) risk in DCM patients.@*METHODS@#The present study is a retrospective cohort study. The demographic, clinical, blood test, and cardiac magnetic resonance imaging (CMRI) data of DCM patients in the tertiary center (Fuwai Hospital) were collected. The primary endpoint was ACM/HTx. The least absolute shrinkage and selection operator (LASSO) Cox regression model was applied for variable selection. Multivariable Cox regression was used to develop a nomogram. The concordance index (C-index), area under the receiver operating characteristic curve (AUC), calibration curve, and decision curve analysis (DCA) were used to evaluate the performance of the nomogram.@*RESULTS@#A total of 218 patients were included in the present study. They were randomly divided into a training cohort and a validation cohort. The nomogram was established based on eight variables, including mid-wall late gadolinium enhancement, systolic blood pressure, diastolic blood pressure, left ventricular ejection fraction, left ventricular end-diastolic diameter, left ventricular end-diastolic volume index, free triiodothyronine, and N-terminal pro-B type natriuretic peptide. The AUCs regarding 1-year, 3-year, and 5-year ACM/HTx events were 0.859, 0.831, and 0.840 in the training cohort and 0.770, 0.789, and 0.819 in the validation cohort, respectively. The calibration curve and DCA showed good accuracy and clinical utility of the nomogram.@*CONCLUSIONS@#We established and validated a circulating biomarker- and CMRI-based nomogram that could provide a personalized prediction of ACM/HTx for DCM patients, which might help risk stratification and decision-making in clinical practice.

Effects of higher femoral tunnels on clinical outcomes, MRI, and second-look findings in double-bundle anterior cruciate ligament reconstruction with a minimal 5-year follow-up / 中华医学杂志(英文版)

BACKGROUND@#To perform anatomical anterior cruciate ligament reconstruction (ACLR), tunnels should be placed relatively higher in the femoral anterior cruciate ligament (ACL) footprint based on the findings of direct and indirect femoral insertion. But the clinical results of higher femoral tunnels (HFT) in double-bundle ACLR (DB-ACLR) remain unclear. The purpose was to investigate the clinical results of HFT and lower femoral tunnels (LFT) in DB-ACLR.@*METHODS@#From September 2014 to February 2016, 83 patients who underwent DB-ACLR and met the inclusion and exclusion criteria were divided into HFT-ACLR (group 1, n = 37) and LFT-ACLR (group 2, n = 46) according to the position of femoral tunnels. Preoperatively and at the final follow-up, clinical scores were evaluated with International Knee Documentation Committee (IKDC), Tegner activity, and Lysholm score. The stability of the knee was evaluated with KT-2000, Lachman test, and pivot-shift test. Cartilage degeneration grades of the International Cartilage Repair Society (ICRS) were evaluated on magnetic resonance imaging (MRI). Graft tension, continuity, and synovialization were evaluated by second-look arthroscopy. Return-to-sports was assessed at the final follow-up.@*RESULTS@#Significantly better improvement were found for KT-2000, Lachman test, and pivot-shift test postoperatively in group 1 ( P >0.05). Posterolateral bundles (PL) showed significantly better results in second-look arthroscopy regarding graft tension, continuity, and synovialization ( P <0.05), but not in anteromedial bundles in group 1. At the final follow-up, cartilage worsening was observed in groups 1 and 2, but it did not reach a stastistically significant difference ( P >0.05). No statistically significant differences were found in IKDC subjective score, Tegner activity, and Lysholm score between the two groups. Higher return-to-sports rate was found in group 1 with 86.8% (32/37) vs. 65.2% (30/46) in group 2 ( P = 0.027).@*CONCLUSION@#The HFT-ACLR group showed better stability results, better PL, and higher return-to-sports rate compared to the LFT-ACLR group.

Improving children's cooperativeness during magnetic resonance imaging using interactive educational animated videos: a prospective, randomised, non-inferiority trial

INTRODUCTION@#A previous prospective, randomised controlled trial showed that animated videos shown to children before magnetic resonance imaging (MRI) scan reduced the proportion of children needing repeated MRI sequences and improved confidence of the children staying still for at least 30 min. Children preferred the interactive video. We hypothesised that the interactive video is non-inferior to showing two videos (regular and interactive) in improving children's cooperativeness during MRI scans.@*METHODS@#In this Institutional Review Board-approved prospective, randomised, non-inferiority trial, 558 children aged 3-20 years scheduled for elective MRI scan from June 2017 to March 2019 were randomised into the interactive video only group and combined (regular and interactive) videos group. Children were shown the videos before their scan. Repeated MRI sequences, general anaesthesia (GA) requirement and improvement in confidence of staying still for at least 30 min were assessed.@*RESULTS@#In the interactive video group ( n = 277), 86 (31.0%) children needed repeated MRI sequences, two (0.7%) needed GA and the proportion of children who had confidence in staying still for more than 30 min increased by 22.1% after the video. In the combined videos group ( n = 281), 102 (36.3%) children needed repeated MRI sequences, six (2.1%) needed GA and the proportion of children who had confidence in staying still for more than 30 min increased by 23.2% after the videos; the results were not significantly different between the two groups.@*CONCLUSION@#The interactive video group demonstrated non-inferiority to the combined videos group.

Is non-contrast-enhanced magnetic resonance imaging cost-effective for screening of hepatocellular carcinoma?

INTRODUCTION@#Ultrasonography (US) is the current standard of care for imaging surveillance in patients at risk of hepatocellular carcinoma (HCC). Magnetic resonance imaging (MRI) has been explored as an alternative, given the higher sensitivity of MRI, although this comes at a higher cost. We performed a cost-effective analysis comparing US and dual-sequence non-contrast-enhanced MRI (NCEMRI) for HCC surveillance in the local setting.@*METHODS@#Cost-effectiveness analysis of no surveillance, US surveillance and NCEMRI surveillance was performed using Markov modelling and microsimulation. At-risk patient cohort was simulated and followed up for 40 years to estimate the patients' disease status, direct medical costs and effectiveness. Quality-adjusted life years (QALYs) and incremental cost-effectiveness ratio were calculated.@*RESULTS@#Exactly 482,000 patients with an average age of 40 years were simulated and followed up for 40 years. The average total costs and QALYs for the three scenarios - no surveillance, US surveillance and NCEMRI surveillance - were SGD 1,193/7.460 QALYs, SGD 8,099/11.195 QALYs and SGD 9,720/11.366 QALYs, respectively.@*CONCLUSION@#Despite NCEMRI having a superior diagnostic accuracy, it is a less cost-effective strategy than US for HCC surveillance in the general at-risk population. Future local cost-effectiveness analyses should include stratifying surveillance methods with a variety of imaging techniques (US, NCEMRI, contrast-enhanced MRI) based on patients' risk profiles.

Temporal Unfolding of Racial Ingroup Bias in Neural Responses to Perceived Dynamic Pain in Others / 神经科学通报·英文版

In this study, we investigated how empathic neural responses unfold over time in different empathy networks when viewing same-race and other-race individuals in dynamic painful conditions. We recorded magnetoencephalography signals from Chinese adults when viewing video clips showing a dynamic painful (or non-painful) stimulation to Asian and White models' faces to trigger painful (or neutral) expressions. We found that perceived dynamic pain in Asian models modulated neural activities in the visual cortex at 100 ms-200 ms, in the orbitofrontal and subgenual anterior cingulate cortices at 150 ms-200 ms, in the anterior cingulate cortex around 250 ms-350 ms, and in the temporoparietal junction and middle temporal gyrus around 600 ms after video onset. Perceived dynamic pain in White models modulated activities in the visual, anterior cingulate, and primary sensory cortices after 500 ms. Our findings unraveled earlier dynamic activities in multiple neural circuits in response to same-race (vs other-race) individuals in dynamic painful situations.

Reshaping the Cortical Connectivity Gradient by Long-Term Cognitive Training During Development / 神经科学通报·英文版

The organization of the brain follows a topological hierarchy that changes dynamically during development. However, it remains unknown whether and how cognitive training administered over multiple years during development can modify this hierarchical topology. By measuring the brain and behavior of school children who had carried out abacus-based mental calculation (AMC) training for five years (starting from 7 years to 12 years old) in pre-training and post-training, we revealed the reshaping effect of long-term AMC intervention during development on the brain hierarchical topology. We observed the development-induced emergence of the default network, AMC training-promoted shifting, and regional changes in cortical gradients. Moreover, the training-induced gradient changes were located in visual and somatomotor areas in association with the visuospatial/motor-imagery strategy. We found that gradient-based features can predict the math ability within groups. Our findings provide novel insights into the dynamic nature of network recruitment impacted by long-term cognitive training during development.

Apport de l'IRM multimodale dans la prise en charge des tumeurs encéphaliques chez l'adulte à Abidjan / Contribution of multimodal MRI in the management of brain tumors in adults in Abidjan

Dans le monde, le nombre de nouveaux cas de tumeurs encéphaliques était de 14 millions en 2014 avec environ 8 millions de personnes décédées. Objectif: déterminer l'efficacité diagnostique de l'IRM multimodale dans la prise en charge des tumeurs encéphaliques dans notre contexte. Matériels et Méthodes: Etude rétrospective à visée descriptive, multicentrique sur une période de 2 ans allant de février 2017 à mars 2019, dans 2 services de radiologie et 2 services de Neurochirurgie, à Abidjan. Nous nous sommes intéressés àtous les patients ayant réalisé une IRM multimodale pour suspicion d'un processus tumoral encéphalique, et qui ont eu une exérèse chirurgicale suivie d'un examen anatomopathologique de la pièce opératoire. Les examens d'IRM multimodale encéphaliques ont été réalisés selon un protocole standard sur des appareils de 1,5 Tesla, et lus par des radiologues séniors. Nous avons confronté les résultats anatomopathologiques aux diagnostics posés à l'imagerie IRM multimodale.Résultats: Ont été retenu 18 dossiers. On notait une prédominance masculine avec un sex-ratio de 1,57. L'âge moyen était de 42,8 ans avec des extrêmes de 20ans et 61ans et un écart type de 10,75.La corrélation diagnostique entre l'examen anatomopathologique et l'IRM a été de6 sur 7 cas, 4 sur 5 cas, 2 sur 2 cas, 2 sur 2 cas et 1 sur 1 cas respectivement pour le méningiome, le gliome, les métastases, l'adénome hypophysaire, le lymphome cérébral primitif.Conclusion:Les tumeurs encéphaliques dans notre étude, étaient variéeset concernaient la population jeune. Les motifs d'erreur diagnostique étaient essentiellement en rapport avec la variété de présentations des tumeurs à l'IRM et l'expérience récente de nos radiologues sur l'utilisation efficace des séquences avancées.

Worldwide, the number of new cases of brain tumors was 14 million in 2014 with approximately 8 million people dying.Objective: determine the diagnostic effectiveness of multimodal MRI in the management of brain tumors in our context.Methods: Retrospective study with a descriptive aim, multicenter over a period of 2 years from February 2017 to March 2019, in 2 radiology departments and 2 neurosurgery departments, in Abidjan. We were interested in all patients who had a multimodal MRI for suspicion of a brain tumor process, and who had a surgical excision followed by an pathological examination of the surgical specimen. The multimodal brain MRI examinations were carried out according to a standard protocol on 1.5 Tesla devices, and read by seniorradiologists. We compared the pathological results with the diagnoses made on multimodal MRI imaging.Results:18 files were retained. There was a male predominance with a sex ratio of 1.57. The average age was 42.8 years with extremes of 20 and 61 years and a standard deviation of 10.75. The diagnostic correlation between the pathological examination and MRI was 6 out of 7 cases, 4 out of 5 cases, 2 out of 2 cases, 2 out of 2 cases and 1 out of 1 case respectively for meningioma, glioma, metastases, pituitary adenoma, primary cerebral lymphoma.Conclusion: The brain tumors in our study were varied and concerned the young population. The reasons for diagnostic error were mainly related to the variety of tumor presentations on MRI and the recent experience of our radiologists on the effective use of advanced sequences.

Adenoma Hepatocelular: a propósito de un caso / Hepatocellular adenoma: about a case / Adenoma hepatocelular: sobre um caso

El Adenoma Hepatocelular (AH) es un tumor hepático benigno, su diagnóstico ha avanzado gracias a los avances en los métodos moleculares, facilitaron dividirlos en subtipos, con diferentes pronósticos e indicaciones terapéuticas. Se presenta el caso clínico de una paciente, de 40 años con hallazgo ecográfico de tumor hepático, la Tomografía de Abdomen y Pelvis voluminosa lesión sólida heterogénea, en la Resonancia Magnética compatible con Adenoma esteatósico (asociado a mutación HNF1 alfa). Se decide tratamiento quirúrgico, con resección de los segmentos 6 y 7. La Anatomía patológica concluye: Compatible con el subtipo inflamatorio. Los Adenoma hepáticos (AH) son tumores raros, solitarios de estirpe epitelial, benignos. Se presentan en mujeres de edad fértil y asociado al consumo de anticonceptivos orales y estrógenos. Estos tumores predominan en hígado derecho, con proliferación de células parecidas a los hepatocitos normales, pero desorganizados y sin arquitectura lobular normal, sin ductos biliares ni tejido conectivo de sostén. Los AH así como el resto de los tumores hepáticos benignos, han aumentado su incidencia de la mano con el avance de la imagenología abdominal. La importancia de la diferenciación con el resto de los tumores hepáticos benignos surge del potencial maligno de éstos. Podemos clasificar a los pacientes según el perfil molecular asociado a marcadores inmunohistoquímicos. Los estudios de imagen son fundamentales para la diferenciación tumoral en diagnóstico y planear la terapéutica. El tratamiento será individualizado, determinada por la clínica, la variedad de subtipos, y la evolución. Debido a la complejidad de la enfermedad, el tratamiento de la HA es uno de los mejores ejemplos de abordaje individualizado en unidades hepatobiliares.

Hepatocellular adenoma (HA) is a benign liver tumor, its diagnosis has advanced thanks to advances in molecular methods, which facilitated its division into subtypes, with different prognoses and therapeutic indications. We present the clinical case of a 40-year-old patient with an ultrasound finding of a liver tumor, a voluminous heterogeneous solid lesion on a CT scan of the abdomen and pelvis, compatible with a steatotic adenoma on MRI (associated with HNF1 alpha mutation). Surgical treatment was decided, with resection of segments 6 and 7. The pathology concluded in short: Compatible with the inflammatory subtype. Hepatic adenomas (HA) are rare, solitary, benign epithelial tumors. They occur in women of childbearing age and associated with the consumption of oral contraceptives and estrogens. These tumors predominate in the right liver, with proliferation of cells similar to normal hepatocytes, but disorganized and without normal lobular architecture, without bile ducts or supporting connective tissue. HA, as well as the rest of the benign liver tumors, have increased their incidence in the hand with the advancement of abdominal imaging. The importance of differentiation with the rest of the benign liver tumors arises from the malignant potential of these. We can classify patients according to the molecular profile associated with immunohistochemical markers. Imaging studies are fundamental for tumor differentiation in diagnosis and therapeutic planning. The treatment will be individualized, determined by the clinic, the variety of subtypes, and the evolution. Due to the complexity of the disease, the treatment of AH is one of the best examples of an individualized approach in hepatobiliary units.

O adenoma hepatocelular (AH) éum tumor benigno do fígado, seu diagnóstico avançougraçasaosavanços dos métodos moleculares, que facilitaramsuadivisão em subtipos, com diferentes prognósticos e indicaçõesterapêuticas. Apresentamos o caso clínico de umadoente de 40 anoscomachadoultrassonográfico de tumor hepático, volumosalesão sólida heterogénea à TC de abdómen e pelve, compatívelcom adenoma esteatótico à RM (associado a mutação HNF1 alfa ). Optou-se por tratamentocirúrgico, comressecção dos segmentos 6 e 7. A patologiaconcluiu-se resumidamente: Compatívelcom o subtipo inflamatório. Os adenomas hepáticos (AH) são tumores epiteliais raros, solitários e benignos. Ocorrem em mulheres em idadereprodutiva e associadasao consumo de anticoncepcionaisorais e estrogênios. Esses tumores predominam no fígadodireito, comproliferação de células semelhantesaoshepatócitosnormais, porém desorganizados e semarquitetura lobular normal, sem ductos biliares outecido conjuntivo de sustentação. O HA, assim como os demais tumores hepáticos benignos, têm aumentado suaincidêncianamãocom o avanço da imagem abdominal. A importância da diferenciaçãocom os demais tumores hepáticos benignos decorre do potencial maligno destes. Podemos classificar os pacientes de acordocom o perfil molecular associado a marcadores imuno-histoquímicos. Os estudos de imagemsãofundamentais para a diferenciação tumoral no diagnóstico e planejamentoterapêutico. O tratamento será individualizado, determinado pela clínica, variedade de subtipos e evolução. Pela complexidade da doença, o tratamento da HA é um dos melhoresexemplos de abordagem individualizada nas unidades hepatobiliares.

Encefalomielite aguda disseminada com provável etiologia de Bartonella henselae / Acute disseminated encephalomyelitis with probable Bartonella henselae etiology

RESUMO A encefalomielite aguda disseminada é uma doença rara, aguda, inflamatória e desmielinizante do sistema nervoso central, presumivelmente associada, em mais de três quartos dos casos, a infecções (virais, bacterianas ou inespecíficas) e imunizações ou sem qualquer antecedente indentificável. Habitualmente, apresenta um curso monofásico com início de sintomas inespecíficos na fase prodrómica, podendo evoluir com alterações neurológicas multifocais e até à perda total da acuidade visual. Descrevemos o caso de um menino de 9 anos com quadro inicial de edema de papila causado por encefalomielite aguda disseminada devido a Bartonella henselae. Apesar da gravidade da doença, o diagnóstico e o tratamento precoce proporcionaram bons desfechos.

ABSTRACT Acute disseminated encephalomyelitis is a rare, acute, inflammatory, and demyelinating disease of the central nervous system. Presumably associated in more than three quarters of cases by infections (viral, bacterial, or nonspecific) and immunizations or without any identifiable antecedent. It usually presents a monophasic course with onset of nonspecific symptoms in the prodromal phase and may evolve with multifocal neurological changes and even visual acuity loss. We describe a case of a 9-year-old boy with an initial picture of papillary edema caused by acute disseminated encephalomyelitis due to Bartonella henselae. Despite the severity of the disease, early diagnosis and treatment provided good outcomes.

Efficacy of Dynamic Magnetic Resonance Imaging in the Diagnosis of Degenerative Cervical Myelopathy: Systematic Review Protocol / Eficácia da ressonância magnética dinâmica no diagnóstico da mielopatia cervical degenerativa: Protocolo de revisão sistemática

Abstract Cervical degenerative myelopathy (CDM) is a cervical spine condition resulting in clinical manifestations of spinal cord compression related to the chronic, non-traumatic, and progressive narrowing of the cervical spinal canal. Conventional magnetic resonance imaging (MRI) is the gold standard test to diagnose and assess the severity of CDM. However, the patient is in a neutral and static position during the MRI scan, which may devalue the dynamic factors of CDM, underestimating the risk of spinal cord injury related to cervical spine flexion and extension movements. Dynamic MRI is a promising technique to change this scenario. Therefore, the present review aims to answer the following question: "Is dynamic MRI of the cervical spine more accurate in diagnosing CDM than conventional MRI?". We will search for studies in the MEDLINE (via PubMed), Embase, Scopus, Web of Science, LILACS, and SciELO databases. The search strategy will contain a combination of terms related to cervical myelopathy and magnetic resonance imaging. Two independent reviewers will select studies, extract data, and assess the risk of bias. The synthesis of results will be descriptive, considering the main findings of the studies about the outcomes of interest.

Resumo A mielopatia cervical degenerativa (MCD) é uma doença da coluna cervical com manifestações clínicas de compressão da medula espinal relacionadas ao estreitamento crônico, não traumático e progressivo do canal vertebral cervical. A ressonância magnética (RM) convencional é o exame padrão-ouro para o diagnóstico e a avaliação da gravidade da MCD. Contudo, o paciente encontra-se em posição neutra e estática durante a realização deste exame, o que pode desvalorizar os fatores dinâmicos da MCD, subestimando o risco de lesão medular relacionados aos movimentos de flexão e extensão da coluna cervical. A RM dinâmica é uma técnica promissora para modificar esse panorama. Portanto, a presente revisão tem o objetivo de responder a seguinte pergunta: "A RM dinâmica da coluna cervical é mais precisa no diagnóstico de MCD em comparação à RM convencional?" As buscas por estudos serão realizadas nas bases de dados MEDLINE (via PubMed), Embase, Scopus, Web of Science, LILACS e SciELO. A estratégia de busca conterá combinação de termos relacionados à mielopatia cervical e à ressonância magnética. Dois avaliadores independentes irão realizar a seleção dos estudos, a extração dos dados e a avaliação dos riscos de viés. A síntese dos resultados será realizada de maneira descritiva, considerando os principais achados dos estudos relacionados aos desfechos de interesse.

Taquicardia ventricular monomorfa sostenida secundaria a lipoma intramiocárdica / Sustained monomorphic ventricular tachycardia secondary to intramyocardial lipoma

[RESUMEN]. Introducción: A pesar de ser extremadamente raros, los tumores cardíacos conforman un importante desafío diagnóstico de la práctica cardiooncológica. Los lipomas son la segunda neoplasia primaria benigna en orden de frecuencia, representan entre un 8 a 12% de los tumores cardíacos primarios benignos en adultos. Materiales, métodos: Presentamos un caso clínico de una paciente estudiada y diagnosticada en nuestra institución. Descripción: Se presenta a una paciente de 21 años, de género femenino, sin factores de riesgo cardiovasculares, que fue referida a nuestra institución con diagnóstico de lipoma cardíaco. Su presentación inicial incluyó taquicardia ventricular sostenida con descompensación hemodinámica, que respondió favorablemente a la cardioversión eléctrica. Tras su ingreso, se llevaron a cabo estudios diagnósticos adicionales para obtener una caracterización más precisa de la masa y facilitar la toma de decisiones terapéuticas. El ecocardiograma transtorácico reveló la presencia de una masa en el septum interventricular basal, con extensión a la pared inferior de ambos ventrículos. La resonancia cardíaca posterior confirmó la naturaleza lipídica de la masa, que se presentaba de manera homogénea, con lí- mites definidos, sin realce en ninguna fase del contraste endovenoso y encapsulada, sin afectar estructuras adyacentes. La ausencia de realce precoz y tardío permitió descartar la vascularización y la presencia de tejido fibroso, respectivamente, consolidando así el diagnóstico de lipoma. Después de una evaluación exhaustiva por el equipo cardiovascular de nuestro hospital, se decidió de manera conjunta no proceder con una intervención quirúrgica debido a la ubicación anatómica del tumor y al elevado riesgo de morbimortalidad asociado. La alternativa consensuada fue la implantación de un cardiodesfibrilador, considerando el historial de arritmia severa y el riesgo de recurrencia en esta paciente. Conclusión: Se presenta un caso infrecuente de tumor cardíaco, que genera grandes desafíos diagnósticos y terapéuticos. Se optó por un tratamiento conservador con el propósito de prevenir la recurrencia de eventos arrítmicos.

[ABSTRACT]. Introduction: Despite being extremely rare, cardiac tumors pose a significant diagnostic challenge in cardio-oncology practice. Lipomas rank as the second most common primary benign neoplasm, accounting for 8 to 12% of primary benign cardiac tumors in adults. Materials and Methods: We present a clinical case of a patient studied and diagnosed at our institution. Description: A 21-year-old female patient, without cardiovascular risk factors, was referred to our institution with a diagnosis of cardiac lipoma. Her initial presentation included sustained ventricular tachycardia with hemodynamic decompensation, successfully managed with electrical cardioversion. Following admission, additional diagnostic studies were conducted to achieve a more precise characterization of the mass and guide therapeutic decision-making. Transthoracic echocardiography revealed a mass in the basal interventricular septum, extending to the inferior wall of both ventricles. Subsequent cardiac resonance confirmed the lipid nature of the mass, presenting homogeneously with well-defined borders, no enhancement in any phase of intravenous contrast, encapsulated, and without involvement of adjacent structures. The absence of early and late enhancement ruled out tumor vascularization and fibrous tissue, respectively, confirming the diagnosis of a lipoma. Following a comprehensive evaluation by our hospital's cardiovascular team, a joint decision was made to refrain from surgical intervention due to the anatomical location of the tumor and the associated high risk of morbidity and mortality. The consensus alternative was the implantation of a cardioverter-defibrillator, considering the patient's history of severe arrhythmia and the risk of recurrence. Conclusion: An infrequent case of cardiac tumor, that is associated with diagnostic and therapeutic challenges, is described. A conservative treatment was chosen aiming to prevent the recurrence of arrhythmic events.