Primary retroperitoneal tumor: mucinous cystoadenocarcinoma.

Primary retroperitoneal mucinous cystadenocarcinomas (PRMCs) are extremely rare tumors with limited understanding of their pathogenesis and biological behavior. We describe a case of a 50-year-old female patient who underwent surgical treatment. The patient had a history of previous surgeries for mesenteric mucinous cystadenoma, without evidence of recurrence. During routine abdominal ultrasound a new tumor was found. An abdomen magnetic resonance imaging was done and confirmed the presence of a cystic lesion in the right iliac fossa. After discussion in multidisciplinary committee, surgical complete resection of the tumor, along with bilateral adnexectomy, was performed successfully. Histopathological examination revealed a mucinous adenocarcinoma adjacent to a mucinous cystadenoma. Immunohistochemical analysis supported the diagnosis of a primary retroperitoneal lesion. The patient had an uneventful recovery and has remained disease-free during the two-year postoperative follow-up. PRMCs are challenging to diagnose preoperatively due to nonspecific symptoms. Surgical excision is the mainstay of treatment. The long-term prognosis and optimal therapeutic strategies require further investigation.

Los cistoadenocarcinomas mucinosos primarios retroperitoneales (CMPR) son tumores extremadamente raros con una comprensión limitada de su patogénesis y comportamiento biológico. Describimos el caso de una mujer de 50 años sometida a tratamiento quirúrgico. La paciente tenía antecedentes de cirugías previas por cistodenoma mucinoso mesentérico, sin evidencia de recurrencia. Durante una ecografía abdominal de rutina se encontró un nuevo tumor. Se realizó una resonancia magnética abdomen que confirmó la presencia de una lesión quística en la fosa ilíaca derecha. Luego de discutir el caso en el comité multidisciplinario, se realizó con éxito la resección quirúrgica completa del tumor, junto con la anexectomía bilateral. El examen histopatológico reveló un adenocarcinoma mucinoso adyacente a un cistodenoma mucinoso. El análisis inmunohistoquímico apoyó el diagnóstico de lesión primaria retroperitoneal. La paciente tuvo una buena recuperación y permaneció libre de enfermedad durante dos años de seguimiento postoperatorio. Los CMPR son difíciles de diagnosticar debido a que presentan síntomas inespecíficos. La escisión quirúrgica es la base del tratamiento. El pronóstico a largo plazo y las estrategias terapéuticas óptimas requieren más investigación.

Non-invasive prehabilitation to foster widespread fMRI cortical reorganization before brain tumor surgery: lessons from a case series.

PURPOSE: The objective of this prospective, single-centre case series was to investigate feasibility, clinical outcomes, and neural correlates of non-invasive Neuromodulation-Induced Cortical Prehabilitation (NICP) before brain tumor surgery. Previous studies have shown that gross total resection is paramount to increase life expectancy but is counterbalanced by the need of preserving critical functional areas. NICP aims at expanding functional margins for extensive tumor resection without functional sequelae. Invasive NICP (intracranial neuromodulation) was effective but characterized by elevated costs and high rate of adverse events. Non-invasive NICP (transcranial neuromodulation) may represent a more feasible alternative. Nonetheless, up to this point, non-invasive NICP has been examined in only two case reports, yielding inconclusive findings. METHODS: Treatment sessions consisted of non-invasive neuromodulation, to transiently deactivate critical areas adjacent to the lesion, coupled with intensive functional training, to activate alternative nodes within the same functional network. Patients were evaluated pre-NICP, post-NICP, and at follow-up post-surgery. RESULTS: Ten patients performed the intervention. Feasibility criteria were met (retention, adherence, safety, and patient's satisfaction). Clinical outcomes showed overall stability and improvements in motor and executive function from pre- to post-NICP, and at follow-up. Relevant plasticity changes (increase in the distance between tumor and critical area) were observed when the neuromodulation target was guided by functional neuroimaging data. CONCLUSION: This is the first case series demonstrating feasibility of non-invasive NICP. Neural correlates indicate that neuroimaging-guided target selection may represent a valid strategy to leverage neuroplastic changes before neurosurgery. Further investigations are needed to confirm such preliminary findings.

Exploring the neural basis of non-invasive prehabilitation in brain tumour patients: An fMRI-based case report of language network plasticity.

Primary brain neoplasms are associated with elevated mortality and morbidity rates. Brain tumour surgery aims to achieve maximal tumour resection while minimizing damage to healthy brain tissue. Research on Neuromodulation Induced Cortical Prehabilitation (NICP) has highlighted the potential, before neurosurgery, of establishing new brain connections and transfer functional activity from one area of the brain to another. Nonetheless, the neural mechanisms underlying these processes, particularly in the context of space-occupying lesions, remain unclear. A patient with a left frontotemporoinsular tumour underwent a prehabilitation protocol providing 20 sessions of inhibitory non-invasive neuromodulation (rTMS and multichannel tDCS) over a language network coupled with intensive task training. Prehabilitation resulted in an increment of the distance between the tumour and the language network. Furthermore, enhanced functional connectivity within the language circuit was observed. The present innovative case-study exposed that inhibition of the functional network area surrounding the space-occupying lesion promotes a plastic change in the network's spatial organization, presumably through the establishment of novel functional pathways away from the lesion's site. While these outcomes are promising, prudence dictates the need for larger studies to confirm and generalize these findings.

Full kinetic modeling analysis of [18F]fluorocholine Positron Emission Tomography (PET) at initial diagnosis of high-grade glioma.

PURPOSE: The main objective was to characterize the tracer uptake kinetics of [18F]fluoromethylcholine ([18F]F-CHO) in high-grade gliomas (HGG) through a full PET kinetic modeling approach. Secondarily, we aimed to explore the relationship between the PET uptake measures and the HGG molecular features. MATERIALS AND METHODS: Twenty-four patients with a suspected diagnosis of HGG were prospectively included. They underwent a dynamic brain [18F]F-CHO-PET/CT, from which a tumoral time-activity curve was extracted. The plasma input function was obtained through arterial blood sampling with metabolite correction. These data were fitted to 1- and 2-tissue-compartment models, the best of which was selected through the Akaike information criterion. We assessed the correlation between the kinetic parameters and the conventional static PET metrics (SUVmax, SUVmean and tumor-to-background ratio TBR). We explored the association between the [18F]F-CHO-PET quantitative parameters and relevant molecular biomarkers in HGG. RESULTS: Tumoral time-activity curves in all patients showed a rapid rise of [18F]F-CHO uptake followed by a plateau-like shape. Best fits were obtained with near-irreversible 2-tissue-compartment models. The perfusion-transport constant K1 and the net influx rate Ki showed strong correlation with SUVmax (r = 0.808-0.861), SUVmean (r = 0.794-0.851) and TBR (r = 0.643-0.784), p < 0.002. HGG was confirmed in 21 patients, of which those with methylation of the O-6-methylguanine-DNA methyltransferase (MGMT) gene promoter showed higher mean Ki (p = 0.020), K1 (p = 0.025) and TBR (p = 0.001) than the unmethylated ones. CONCLUSION: [18F]F-CHO uptake kinetics in HGG is best explained by a 2-tissue-compartment model. The conventional static [18F]F-CHO-PET measures have been validated against the perfusion-transport constant (K1) and the net influx rate (Ki) derived from kinetic modeling. A relationship between [18F]F-CHO uptake rate and MGMT methylation is suggested but needs further confirmation.

Elementos que configuran la percepción de seguridad escolar en estudiantes de secundaria / Elements that configure school safety perception in high school students

Resumen El objetivo de este trabajo fue describir los elementos que configuran la percepción de seguridad escolar en estudiantes de secundaria. Se presenta un estudio cualitativo con enfoque sistémico ecológico. Por medio de un muestreo teórico, se incluyeron a 22 estudiantes, 50 % hombres con 12 a 16 años, quienes participaron en un grupo focal, previo consentimiento informado de los padres. Los datos recabados fueron audio grabados; se transcribieron y analizaron con el método de análisis de contenido por medio del programa Maxqda 18. Se identificaron 4 categorías que configuran la percepción de seguridad escolar: 1) condiciones de la escuela (físicas y organizacionales); 2) elementos relacionados con los maestros; 3) elementos relacionados con los compañeros, y 4) elementos relacionados con los padres. Los hallazgos sugieren que las condiciones físicas y organizacionales mantienen un papel importante en la con figuración del sentido de seguridad escolar. Asimismo, la cercanía y apoyo recibido de actores del contexto (maestros, padres y alumnos) promueve una percepción más positiva de la seguridad.

Abstract The aim of this study was to describe the individual elements that configure the school safety perception in middle school students. We designed a qualitative study, with a systemic and ecological approach. Using a theoretical sampling, we included 22 students, 50% man with an age from 12 to 16 years old, who participated in a focus group, previous informed consent from the parents. The session was videotaped, the data was transcribed and analyzed using content analysis with the program MAXQDA 18. We identified four categories of factors that configure the student's school safety perception: 1) school conditions (physical and organizational); 2) elements related to teachers; 3) elements related to peers; and 4) elements related to parents. The findings suggest that the school´s physical and organizational conditions have an important role in the configuration of the school safety perception. Likewise, the closeness and support received by actors from the school context (teachers, parents and peers) favor a more positive perception of school safety.

Brazilian recommendations on the safety and effectiveness of the yellow fever vaccination in patients with chronic immune-mediated inflammatory diseases

Abstract Background: In Brazil, we are facing an alarming epidemic scenario of Yellow fever (YF), which is reaching the most populous areas of the country in unvaccinated people. Vaccination is the only effective tool to prevent YF. In special situations, such as patients with chronic immune-mediated inflammatory diseases (CIMID), undergoing immunosuppressive therapy, as a higher risk of severe adverse events may occur, assessment of the risk-benefit ratio of the yellow fever vaccine (YFV) should be performed on an individual level. Main body of the abstract: Faced with the scarcity of specific orientation on YFV for this special group of patients, the Brazilian Rheumatology Society (BRS) endorsed a project aiming the development of individualized YFV recommendations for patients with CIMID, guided by questions addressed by both medical professionals and patients, followed an internationally validated methodology (GIN-McMaster Guideline Development). Firstly, a systematic review was carried out and an expert panel formed to take part of the decision process, comprising BRS clinical practitioners, as well as individuals from the Brazilian Dermatology Society (BDS), Brazilian Inflammatory Bowel Diseases Study Group (GEDIIB), and specialists on infectious diseases and vaccination (from Tropical Medicine, Infectious Diseases and Immunizations National Societies); in addition, two representatives of patient groups were included as members of the panel. When the quality of the evidence was low or there was a lack of evidence to determine the recommendations, the decisions were based on the expert opinion panel and a Delphi approach was performed. A recommendation was accepted upon achieving ≥80% agreement among the panel, including the patient representatives. As a result, eight recommendations were developed regarding the safety of YFV in patients with CIMID, considering the immunosuppression degree conferred by the treatment used. It was not possible to establish recommendations on the effectiveness of YFV in these patients as there is no consistent evidence to support these recommendations. Conclusion: This paper approaches a real need, assessed by clinicians and patient care groups, to address specific questions on the management of YFV in patients with CIMID living or traveling to YF endemic areas, involving specialists from many areas together with patients, and might have global applicability, contributing to and supporting vaccination practices. We recommended a shared decision-making approach on taking or not the YFV.

Determinants of quality of life in Paget's disease of bone / Determinantes da qualidade de vida na doença de Paget óssea

Abstract Objective: To evaluate the parameters associated with quality of life in patients with Paget's disease of bone. Methods: Patients with Paget's disease of bone were evaluated with SF-36 and WHOQOL-bref questionnaires. Patients with other diseases that could cause significant impairment of their quality of life were excluded. We searched for correlations between the results and: age, time from diagnosis, type of involvement, pain related to Paget's disease of bone, limitation to daily activities, deformities, bone specific alkaline phosphatase, the extent of involvement and treatment. Results: Fifty patients were included. Results of the SF-36 total score and its domains, physical and mental health, were significantly correlated with bone pain and deformities. Marital status was significantly correlated with the SF-36 total score and Mental Health Domain. BAP levels and disease extension were significantly correlated to SF-36 Physical Health Domain. After multivariate analysis, the only parameters that remained significantly associated with the SF-36 total score and to its Mental Health and Physical Health Domains were pain and marital status.The WHOQOL-bref total score was significantly associated with pain, physical impairment and deformities. WHOQOL-bref Domain 1 (physical) score was significantly associated with marital status, pain and deformities, while Domain 2 (psychological) score was associated with marital status, physical impairment and kind of involvement. After multivariate analysis, the presence of pain, deformities, and marital status were significantly associated with results of the WHOQOL-bref total score and its Domain 1. WHOQOL-bref domain 2 results were significantly predicted by pain and marital status. Conclusion: The main disease-related factor associated with SF-36 results in Paget's disease of bone patients was bone pain, while bone pain and deformities were associated with WHOQOL-bref.

Resumo Objetivo: Avaliar os parâmetros associados à qualidade de vida em pacientes com doença de Paget óssea (DPO). Métodos: Avaliaram-se pacientes com DPO com os questionários SF-36 e WHOQOL-bref. Excluíram-se pacientes com outras doenças que pudessem causar comprometimento significativo da qualidade de vida. Buscou-se por correlações entre os resultados e idade, tempo de diagnóstico, tipo de envolvimento, dor relacionada com a DPO, limitação às atividades diárias, deformidades, fosfatase alcalina específica do osso, extensão do envolvimento e tratamento. Resultados: Incluíram-se 50 pacientes. Os resultados da pontuação total do SF-36 e seus domínios, saúde física e saúde mental, se correlacionaram significativamente com a dor óssea e deformidades. O estado civil se correlacionou significativamente com a pontuação total do SF-36 e com seu domínio saúde mental. Os níveis de BAP e a extensão da doença se correlacionaram significativamente com o domínio saúde física do SF-36. Depois da análise multivariada, os únicos parâmetros que permaneceram significativamente associados à pontuação total do SF-36 e aos seus domínios saúde mental e saúde física foram a dor e o estado civil. A pontuação total do WHOQOL-bref esteve significativamente associada à dor, ao comprometimento físico e a deformidades. O escore do Domínio 1 (físico) do WHOQOL-bref esteve significativamente associado ao estado civil, dor e deformidades, enquanto o Domínio 2 (psicológico) esteve associado ao estado civil, comprometimento físico e tipo de envolvimento. Depois da análise multivariada, a presença de dor, deformidades e estado civil esteve significativamente associada à pontuação total do WHOQOL-bref e à pontuação do seu Domínio 1. Os resultados do WHOQOL-bref 2 foram significativamente preditos pela dor e pelo estado civil. Conclusão: O principal fator associado aos escores do SF-36 foi a dor óssea, enquanto a dor óssea e as deformidades estiveram associadas ao WHOQOL-bref.

Tratamiento con pasta 3 Mix-MP en molares primarios no vitales: estudio preliminar / Treatment of nonvital primary molars with 2 Mix-MP paste: a preliminary study

Estimar la frecuencia de éxito clínico-radiográfico del tratamiento endodóntico no instrumentado con pasta 3Mix-MP en molares primarios con diagnóstico de necrosis pulpar. Materiales y métodos: estudio experimental, prospectivo y longitudinal, realizado en la Cátedra de Odontología Integral Niños de la FOUBA (agosto 2014 - agosto 2015). Formaron parte de la investigación 44 molares primarios con diagnóstico de necrosis pulpar, de 36 niños (6,07 +/- 1,63 años), sin compromiso inmunológico ni metabólico y que junto con sus responsables legales brindaron el consentimiento informado. Se realizó el tratamiento endodóntico no instrumentado con pasta 3Mix-MP (metronidazol, minociclina, ciprofloxacina 1:1:1 y vehículos macrogol, propilenglicol 1:1) y restauración definitiva con corona de acero. Los molares fueron evaluados por dos examinadores al mes, 3, 6 y 12 meses. Se calcularon porcentajes con sus intervalos de confianza del 95 por ciento. Resultados: al mes, la tasa de éxito clínico fue de 97.72 por ciento (87.96-99.97) y la de éxito radiográfico de 93.18 por ciento (81.31-98.61). Fue posible el seguimiento del 65.85 por ciento de la muestra a los 3 meses, del 34.14 por ciento a los 6 meses y del 24.39 por ciento a los 12 meses, revelando un 100 por ciento de éxito clínico-radiográfico en los tratamientos evaluados. Conclusión: en los casos y períodos estudiados, esta terapéutica mostró un buen comportamiento clínico y radiográfico. Son necesarios estudios con mayor tamaño muestral y mayor período de seguimiento para proponerla como alternativa de tratamento...

Embolia pulmonar: registro multicêntrico da prática clínica em hospitais terciários / Pulmonary embolism: multicenter registry in tertiary hospitals

INTRODUÇÃO: O perfil clínico e as estratégias diagnósticas e terapêuticas nos pacientes com embolia pulmonar demonstram a prática clínica na abordagem da doença. Essas informações, escassas nos estudos nacionais, possibilitam melhor conhecimento da embolia pulmonar. MÉTODOS: Estudo multicêntrico de 727 pacientes admitidos em unidades de emergência ou terapia intensiva, com o diagnóstico de embolia pulmonar confirmado por um ou mais dos seguintes exames: arteriografia pulmonar angiotomografia computadorizada helicoidal angioressonância magnética, ecodopplercardiograma, cintilografia pulmonar ou duplex-scan venoso. Dados demográficos, comorbidades, manifestações clínicas e métodos complementares foram analisados. RESULTADOS: A média de idade foi 68 anos, sendo 42 por cento homens. Os fatores de risco mais prevalentes foram: idade > 40 anos, repouso no leito e neoplasia. A dispnéia, taquipnéia, taquicardia, dor torácica, foram as manifestações clínicas mais frequentes. O eletrocardiograma apresentou alterações em 30 por cento, a radiografia de tórax em 45 por cento, o duplex-scan venoso em 69 por cento e o ecodopplercardiograma em 37 por cento. O D-dímero a troponina e a CKMB foram positivos em respectivamente 93, 9 e 8 por cento. Os métodos mais utilizados para o diagnóstico foram: tomografia computadorizada: 47 por cento, duplex-scan venoso: 14 por cento e cintilografia pulmonar: 14 por cento. As formas mais freqüentes de tratamento foram: heparina não fracionada 50 por cento, heparina de baixo peso molecular 30 por cento e trombolítico 12 por cento. A mortalidade intra-hospitalar foi de 19,5 por cento. CONCLUSÕES: Observou-se que a idade > 40 anos, imobilização prolongada e neoplasia foram os fatores de risco de maior prevalência e a dispnéia a apresentação clínica mais freqüente. A angiotomografia computadorizada helicoidal foi o método mais utilizado para o diagnóstico e a heparina não fracionada a principal forma de tratamento.

INTRODUCTION: The clinical profile as well as the therapeutic and diagnostic strategies for patients with pulmonary embolism, describes clinical practice in the approach of the disease. Such information, scarce in national studies, enables a better understanding of pulmonary embolism. METHODS: A multicenter trial included 727 patients with pulmonary embolism who were admitted in emergency or intensive care unit. Diagnostic criteria for inclusion were: 1. Visibility of thrombus in the pulmonary artery at pulmonary arteriography, helical computer tomography, magnetic resonance or echocardiogram. 2. High probability at pulmonary scintigraphy. 3. Venous duplex-scan with thrombus and clinical manifestations of pulmonary embolism. Clinical and complementary exams were analyzed. RESULTS: Mean age was 68 years, 42 percent were male. Most prevalent risk factors were: age>40 years, bed rest and neoplasm. More frequent signs and symptoms were: dyspnea, tachypnea, sinus tachycardia, and chest pain. Changes were observed at electrocardiogram in 30 percent, at chest X-ray in 45 percent, at venous duplex-scan in 67 percent, at transthoracic echocardiogram in 37 percent. . D-dimer, troponin I and CKMB were positive in, respectively, 93, 9 and 8 percent. Most frequently used methods to confirm diagnosis were helical computer tomography and non-fractioned heparin was the treatment most used. In-hospital mortality was 19.5 percent. CONCLUSIONS: It was observed that age>40 years, prolonged rest and neoplasms were the most prevalent risk factors and dyspnea and tachypnea were the more frequent clinical manifestations. Helical computer tomography was the most often used method to confirm diagnosis and non-fractioned heparin was the main form of treatment.

Padronização do parâmetros hematológicos e bioquímicos de camundongos Swiss e ratos Wistar / Haemotological and biochemical parameter standardization of Swiss mice and Wistar rats

Foram realizados determinações hematológicas (hemograma e contagem de plaquetas) e bioquímicas (glicose, uréia, creatinina, colesterol total, triglicerídeos, ácido úrico, proteínas totais e frações, fosfatase alcalina, transaminases, sódio, potássio, cálcio e magnésio) em camundongos Swiss e ratos Wistar, mantidos no Biotério do Laboratório de Tecnologia Farmacêutica da Universidade Federal da Paraíba. Para a obtenção desses parâmetros foi utlizado sangue obtido pela sangria do plexo braquial. Foram detectadas variações nos valores obtidos entre os animais machos e fêmeas investigados; também ficou evidenciado que existem diferenças nos parâmetros obtidos por outros autores.

Swiss mice and Wistar rats, maintained in the Bioterium of the Laboratory of Pharmaceutics Technology/UFPB, were analysed through haematological (hemogram and platelets) and biochemistry (glucose, urea, creatinine, total cholesterol, triglycerides, uric acid, total proteins and fractions, alkaline phosphatase, transaminases, sodium, potassium, calcium and magnesium) determinations. The blood analysed was obtained from the brachial plexus bloodletting. It was detected that there are variations in the parameters among males and females investigated and so in relation to the values obtained from other searchers.

Dermatomicoses e enteroparasitoses em escolares da comunidade de Brasília Teimosa, Recife-PE, Brasil / Dermatomycosis and enteroparasitosis in students of the Brasília Teimosa community, Recife-PE, Brasil

A detecção de dermatomicoses e de enteroparasitoses foi verificada em escolares da Comunidade de Brasília Teimosa,Recife-PE, Brasil, no período de janeiro a dezembro de 2000. Foram avaliados 1063 escolares dos quais 100 foram selecionados por apresentarem lesões sugestivas de dermatomicoses e desses foram solicitadas amostras coprológicas. Entre os escolares selecionado, 61% são do sexo masculino com faixa etária entre 3 a 14 anos e 39%...

Dermatopatias por desnutriçäo infantil / Dermatopathies for infantile malnutrition

Esta pesquisa teve como objetivo analisar a incidência das manifestações dermatológicas decorrentes de desnutrição em crianças atendidas no Hospital Universitário Lauro Wanderley (HULW), João Pessoa-PB. Realizou-se um estudo transversal, onde os pacientes portadores de desnutrição primária eram submetidos a exame dermatológico completo e aplicado questionário às mães ou acompanhantes. Do total de crianças que deram entrada no serviço, 52 apresentaram desnutição como causa única da internação; das portadoras de desnutrição grave, 62 (60,19 por cento) tinham marasmo, 31 (30,10 por cento), Kwashiorkor e 10 (9,71 por cento), Kwashiorkor-marasmático. A incidência de lesões cutâneo-mucosas no grupo pertencente ao estudo foi de 7,13 por cento, sendo caracterizadas principalmente por ressecamento de pele, seguida de alterações de cabelos, lesões hipocrômicas e hipercrômicas

Carcinomatose sinovial como causa de monoartrite crônica: uma rara associaçäo / Carcinomatous synovitis causing chronic monoarticular arthritis: a rare association

Embora a disseminaçäo metastática carcinomatosa para estrutura ósseas näo possa ser considerada manifestaçäo rara, principalmente a partir de neoplasias pulmonares, o acometimento patelar associado à invasäo sinovial pode ser estabelecido como fato inusitado. Acompanhamos o caso de paciente idoso do sexo masculino que apresentou, inicialmente, monoartrite de joelho direito. Após dois meses de evoluçäo, foi internado referindo tosse persistente há 30 dias e considerável emagrecimento. A radiografia de tórax, podíamos observar presença de massa para-hilar à direita. A radiografia de joelhos evidenciou lesäo lítica no pólo inferior da patela direita; a cintilografia óssea demonstrou hipercaptaçäo isolada de joelho direito. Foi realizada punçäo sinovial, que obteve líquido hemorrágico. O estudo histológico pulmonar (através de biópsia transbrônquica) foi compatível com diagnóstico de carcinoma epidermóide pouco diferenciado; alteraçöes histológicas similares puderam ser demonstradas na membrana sinovial. A apresentaçäo dessa rara associaçäo, claramente evidenciada, permite que a carcinomatose osteossinovial participe do complexo diagnóstico diferencial das monoartrites crônicas