Fulminant endogenous panophthalmitis caused by Clostridium septicum infection / Panoftalmite endógena fulminante por infecção por Clostridium septicum

ABSTRACT We report an unusual case of fulminant endogenous Clostridium septicum panophthalmitis. A 74-year-old male patient presented with sudden amaurosis in the right eye, which in a few hours, evolved into an orbital cellulitis, endophthalmitis, anterior segment ischemia, and secondary perforation of the eye. A complete diagnostic study, which included cranial and orbital contrast-enhanced computed tomography scan, contrast-enhanced magnetic resonance imaging, blood cultures, and complete blood work, were performed. No causal agent was identified. Clostridium septicum infection caused fulminant gaseous panophthalmitis. Despite broad-spectrum antibiotic treatment, evisceration of the eyeball was necessary. The extension study showed a colon adenocarcinoma as the origin of the infection. Clostridium septicum panophthalmitis is a rare but aggressive orbital infection. This infection warrants the identification of a neoplastic process in the gastrointestinal tract in many cases not previously described.

RESUMO Este é o relato de um caso incomum de panoftalmite endógena fulminante por Clostridium septicum. Um paciente do sexo masculino, 74 anos, apresentou amaurose súbita no olho direito, que em poucas horas evoluiu para celulite orbitária, endoftalmite, isquemia do segmento anterior e perfuração secundária do olho. Foi realizado um estudo diagnóstico completo, que incluiu uma tomografia computadorizada com contraste cranial e orbital, um exame de ressonância magnética, hemocultura e hemograma completo. Nenhum agente causal foi identificado. A infecção por Clostridium septicum causou uma panoftalmite gasosa fulminante. Apesar do tratamento com antibióticos de amplo espectro, foi necessário eviscerar o globo ocular. O estudo de seguimento mostrou um adenocarcinoma de cólon como a origem da infecção. A panoftalmite por Clostridium septicum é um tipo raro, mas muito agressivo de infecção orbitária. Essa infecção deve sugerir a busca por um processo neoplásico no trato gastrointestinal, em muitos casos não diagnosticado anteriormente.

Adenocarcinoma de mama en un hombre / Breast adenocarcinoma in a man

Solo imágenes(AU)

Meningeal Carcinomatosis for Prostate Adenocarcinoma Mimicking Chronic SubduralHematoma: Case Report and Literature Review

Introduction Cerebral metastases are the most common cancer of the central nervous system (CNS). Meningeal infiltration by neoplasms that did not originate in the CNS is a rare fact that is present in 0.02% of the autopsies. Epidemiologically, the radiological presentation mimicking a subdural hematoma is even more uncommon. We report a case of meningeal carcinomatosis by an adenocarcinoma of the prostate mimicking a chronic subdural hematoma. Case Report A 60-year-old male patient was diagnosed with prostate cancer in 2011. He underwent radical resection of the prostate, as well as adjuvant hormonal therapy and chemotherapy. Five years later, the patient presented peripheral facial paralysis that evolved with vomiting and mental confusion. Tomography and magnetic resonance imaging scans confirmed the subdural collection. At surgery, the dura was infiltrated by friable material of difficult hemostasis. The anatomicopathological examination showed atypical epithelial cells. The immunohistochemistry was positive for prostate-specific antigen (PSA) and other keymarkers, and it was conclusive for meningeal carcinomatosis by a prostate adenocarcinoma.

Combination of GI-RADS and 3D-CEUS for differential diagnosis of ovarian masses

SUMMARY OBJECTIVE The purpose of this study is to evaluate the efficacy of the combination of gynecologic imaging reporting and data system (GI-RADS) ultrasonographic stratification and three-dimensional contrast-enhanced ultrasonography (3D-CEUS) in order to distinguish malignant from benign ovarian masses. METHODS In this study, 102 patients with ovarian masses were examined by both two-dimensional ultrasound(2D-US) and 3D-CEUS. Sonographic features of ovarian masses obtained from 3D-CEUS were analyzed and compared with 2D-US. All patients with ovarian masses were confirmed by operational pathology or long-term follow-up results. RESULTS (1)The Chi-square test and multiple Logistic regression analysis confirmed that there were only eight independent predictors of malignant masses, including thick septa (≥3mm), thick papillary projections(≥7mm), solid areas, presence of ascites, central vascularization, contrast enhancement, distribution of contrast agent, and vascular characteristics of the solid part and their odds ratios which were 5.52, 5.39, 4.94, 4.34, 5.92, 7.44, 6.09, and 7.67, respectively (P<0.05). (2)These eight signs were used to combine the GI-RADS with 3D-CEUS scoring system in which the corresponding value of the area under the curve (AUC) was 0.969, which was superior to using GI-RADS lonely (Z-value=1.64, P<0.025). Using 4 points as the cut-off, the scoring system showed the performance was clearly better than using GI-RADS alone (P<0.05). (3) The Kappa value was 0.872 for two different clinicians with equal experience. CONCLUSIONS The combination of GI-RADS and 3D-CEUS scoring system would be a more effective method to distinguish malignant from benign ovarian masses.

RESUMO OBJETIVO O objetivo deste estudo é avaliar a eficácia da combinação da estratificação por ultrassonografia usando o Sistema de Relatórios e Dados de Imagem Ginecológica (GI-RADS) e ultrassonografia 3D com contraste (3D-CEUS) para diferenciar massas ovarianas benignas de malignas. METODOLOGIA Neste estudo, 102 pacientes com massas ovarianas foram examinadas usando ultrassonografia bidimensional (2D-US) e 3D-CEUS. As características ultrassonográficas das massas ovarianas obtidas com 3D-CEUS foram analisadas e comparadas com de 2D-US. Todos os pacientes com massas ovarianas tiveram o diagnóstico confirmado pelos resultados de patologia cirúrgica ou acompanhamento de longo prazo. RESULTADOS (1) O teste qui-quadrado e a regressão logística múltipla confirmaram a existência de apenas oito preditores independentes de massas malignas, incluindo septos espessos (≥3mm), projeções papilares espessas (≥7mm), áreas sólidas, presença de ascite, vascularização central, aumento de contraste, distribuição do agente de contraste e características vasculares da parte sólida e suas razões de possibilidades (OR), que foram 5,52, 5,39, 4,94, 4,34, 5,92, 7,44, 6,09 e 7.67, respectivamente (P< 0,05). (2) Esses oito preditores foram utilizados para combinar o GI-RADS com o sistema de escores da 3D-CEUS, para o qual o valor correspondente da área sob a curva (AUC) foi de 0,969, superior ao uso exclusivo do GI-RADS (valor de Z = 1,64, P < 0,025). Usando 4 pontos como corte, o sistema de escores mostrou que o desempenho foi muito melhor do que com o uso exclusivo do GI-RADS (P < 0,05). (3) O valor de Kappa foi 0,872, obtido por dois médicos diferentes com igual experiência. CONCLUSÃO A combinação do GI-RADS e do sistema de pontuação da 3D-CEUS é um método mais eficaz para distinguir massas ovarianas benignas de malignas.

Carcinoma adenoneuroendocrino mixto de la ampolla de Vater: reporte de caso / Mixed adenoneuroendocrine carcinoma of the ampulla of Vater: case report

INTRODUCCIÓN: Los carcinomas adenoneuroendocrinos mixtos (MANEC) son tipos de tumores bifásicos, reconocidos morfológicamente ante la presencia de una formación neoplásica constituida de manera simultánea por epitelio glandular y células neuroendocrinas. Dentro del tracto gastrointestinal, estas neoplasias predominan en el estómago o el colon. Solo 19 casos localizados en la ampolla de Vater han sido reportados por la literatura. OBJETIVO: Reportar un caso de MANEC; revisar la epidemiología, pronóstico y tratamiento de estos tumores. MATERIALES Y MÉTODO: Presentación de caso clínico de una paciente con diagnóstico de adenocarcinoma neuroendocrino mixto de la región ampular. DISCUSIÓN: La presentación clínica, el manejo y el pronóstico son similares al del adenocarcinoma ampular. Se diagnostican con el examen histopatológico de la muestra resecada. Ambos componentes deben ser histológicamente malignos, y cada uno de ellos debe representar al menos el 30% de la lesión. CONCLUSIÓN: Los MANEC ampulares son tumores poco comunes a nivel mundial, siendo éste el primer caso reportado en nuestro instituto.

INTRODUCTION: Mixed adenoneuroendocrine carcinomas (MANEC) are types of biphasic tumors, morphologically recognized in the presence of a neoplastic formation constituted simultaneously by glandular epithelium and neuroendocrine cells. Only 19 cases located in the ampulla of Vater have been reported in the literature. Within the gastrointestinal tract, these neoplasms predominate in the stomach or colon. AIM: Report a case of MANEC; review of the epidemiology, prognosis and treatment of these tumors. MATERIALS AND METHOD: Case presentation of a patient diagnosed with mixed adeno-neuroendocrine carcinoma of the ampullary region. DISCUSSION: The clinical presentation, management and prognosis are similar to ampullary adenocarcinoma. These tumors are diagnosed with a histopathological examination of the resected specimen. Both components must be histologically malignant, and each of them must represent at least 30% of the lesion. CONCLUSION: MANEC of the ampulla are rare tumors worldwide, being this case the first reported in our institute.

Adenocarcinoma pulmonar sincrónico y linfoma primario de tejido linfoide asociado a mucosa pulmonar / Synchronous pulmonary adenocarcinoma and primary lymphoma of lung mucosa-associated lymphoid tissue

Los linfomas derivados del tejido linfoide asociado a las mucosas (MALT) son entidades poco frecuentes, de bajo grado de malignidad con escaso o nulo compromiso ganglionar y representan cerca del 80% de los linfomas primarios pulmonares. La aparición sincrónica con adenocarcinoma de pulmón es un hallazgo extremadamente infrecuente. Presentamos el caso de un hombre de 68 años, ex-tabaquista, en quien durante el seguimiento de un nódulo pulmonar se identificó un segundo nódulo y la biopsia quirúrgica confirmó el diagnóstico de ambas neoplasias.

The lymphomas of mucosa-associated lymphoid tissue (MALT), are uncommon entities, of low grade of malignancy with very infrequent or no lymph node involvement. They represent about 80% of the primary pulmonary lymphomas. The synchronous appearance with lung adenocarcinoma is an extremely rare finding. We present the case of an ex-smoker 68-year-old man, in whom, in the follow-up of a pulmonary nodule, a second pulmonary nodule was found. The surgical biopsy confirmed the diagnosis of both neoplasms.

Utilidad de la elastografía guiada por ultrasonografía endoscópica en la evaluación de lesiones sólidas pancreáticas / Usefulness of endoscopic ultrasound guided elastography in the assessment of solid pancreatic lesions

Introducción: La elastografía guiada por ultrasonografía endoscópica es considerada una herramienta útil en la evaluación de las lesiones solidas pancreáticas (LSP). Objetivo: El objetivo del estudio fue evaluar el rendimiento diagnóstico de la elastografia en pacientes con LSP. Material y métodos: Se realizó un estudio transversal prospectivo en el hospital Rebagliati durante julio 2017 a junio 2018. Se incluyeron pacientes con diagnóstico de LSP y estudio ecoendoscópico, elastografía y toma de PAAF. Se realizó elastografia cualitativa y elastografia cuantitativa (SR e histograma) y se analizó con resultados histopatológicos para determinar la sensibilidad, especificidad, valor predictivo positivo (VPP), valor predictivo negativo (VPN) y exactitud diagnostica en la detección de malignidad. Resultados: De 846 ecoendoscopías, se estudiaron 46 pacientes con LSP con una edad promedio de 64,6 años, 29 (63%) sexo femenino. El adenocarcinoma pancreático fue diagnosticado en 36 casos (78,3%). En elastografía cualitativa predominó el score 3 (n=39, 84,8%) con una sensibilidad, especificidad y exactitud de 88.9%, 30% y 76,1% respectivamente para predecir adenocarcinoma. Elastografía cuantitativa de SR≥ 15 (sensibilidad 100%, especificidad 66,7% y exactitud 97,8%) y un valor de histograma menor de 49 (sensibilidad 66,7%, especificidad 97,6% y exactitud 95,6%) predice malignidad en una LSP con área bajo de la curva ROC de 0,941 (IC 95%, 0,82 - 1,0). Conclusiones: La elastografía brinda información para predecir la naturaleza maligna de la lesión. En nuestro estudio la detección elastográfica de un score 3, SR≥ 15 o un histograma < 49 predice la presencia de malignidad en la LSP estudiada.

Introduction: endoscopic ultrasonography (EUS) elastography is considered a useful tool for the evaluation of solid pancreatic lesions (SPL). Objective: The aim of our study was to evaluate the diagnostic performance of elastography in patients with SPL. Material and methods: A prospective, cross-sectional study was performed at the Rebagliati Hospital between July 2017 and June 2018. Patients with a diagnosis of SPL and echoendoscopic study, elastography and FNA were included. Qualitative and quantitative elastography: strain ratio (SR) and strain histogram, were performed and analyzed with histopathological results. The diagnostic accuracy of EUS elastography in detecting malignancy was calculated using receiver operating curve analysis. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy for the detection of malignancy were calculated. Results: Out of 832 EUS examinations performed, 46 patients with SPL (mean age, 64.6 years; 29 women) were included in the study. Pancreatic adenocarcinoma was diagnosed in 36 cases. In qualitative elastography, score 3 was most frequent (n = 39, 84.8%) with sensitivity, specificity and accuracy of 88.9%, 30% and 76.1%, respectively, for predict adenocarcinoma. A strain ratio of 15 or higher (100% sensitivity, 66.7% specificity and 97.8% accuracy) and a histogram of less than 49 (66.7% sensitivity, 97.6% specificity and 95.6% accuracy) predicts malignancy in SPL, with area under a ROC curve of 0.941 (95% CI, 0.82 - 1.0). Conclusions: EUS elastography provides information to predict the malignant nature of the pancreatic lesion. In our study, the elastographic detection of a score 3, SR≥15 or a histogram <49 predicts the presence of malignancy in LSP.

Excisão total de mesorreto transanal combinada à dissecção laparoscópica: resultados perioperatórios e avaliação da qualidade do mesorreto / Transanal total mesorectal excision combined with laparoscopic dissection: perioperative results and assessment of the mesorectal quality

RESUMO Objetivo: avaliar os resultados perioperatórios e pós-operatórios relacionados à excisão total do mesorreto transanal, bem como, qualidade dos espécimes obtidos pela excisão total do mesorreto transanal através da análise histopatológica da qualidade do mesorreto, acometimento das margens proximal e distal e positividade da margem circunferencial. Métodos: estudo prospectivo, descritivo, em pacientes consecutivos portadores de adenocarcinoma de reto localizados até 10cm da borda anal, sem metástase à distância, submetidos ou não à quimioterapia e radioterapia neoadjuvantes. Foram avaliados a presença de dificuldades técnicas, índice de conversão para via abdominal, tempo cirúrgico e intercorrências intra e pós-operatórias. A qualidade do mesorreto foi classificada em ressecção completa, parcialmente completa ou incompleta. Resultados: entre dezembro de 2016 e maio de 2019, 41 pacientes foram submetidos à excisão total do mesorreto transanal, dos quais 75% foram classificados como estágio clínico III, 13% estágio clínico II e 12% estágio clínico I. A média de distância entre borda anal e borda inferior do tumor foi de 6,2cm. Quarenta por cento dos tumores encontravam-se na parede retal anterior e 17% foram classificados como circunferenciais. A média de tempo operatório foi de 189 minutos. A média de internação hospitalar foi de 4,6 dias. Não houve óbitos intra-hospitalares. Oitenta e dois por cento dos espécimes foram classificados como ressecção completa. Conclusão: a excisão total do mesorreto transanal demonstra adequada qualidade do mesorreto e adequadas margens cirúrgicas, estando associada a baixos índices de complicações perioperatórias, tempo cirúrgico aceitável e curto tempo de hospitalização.

ABSTRACT Objective: to assess the perioperative and postoperative results of transanal total mesorectal excision, as well as the quality of the specimens obtained by this technique. Methods: we conducted a prospective, descriptive study in consecutive patients with rectal adenocarcinoma located up to 10cm from the anal verge, without distant metastasis, subjected or not to neoadjuvant chemoradiotherapy. We evaluated the presence of technical difficulties, conversion to open abdominal route, surgical time and intra and postoperative complications. Through histopathological analysis, we assessed the quality of the mesorectum, involvement of the proximal and distal margins and positivity of the circumferential, classifying quality of the mesorectum as complete, partially complete or incomplete resection. Results: between December 2016 and May 2019, 41 patients underwent transanal total mesorectal excision, of which 75% were classified as clinical stage III, 13% clinical stage II and 12% clinical stage I. The average distance between the anal verge and the lower border of the tumor was 6.2cm. Forty percent of the tumors were in the anterior rectal wall and 17% were circumferential. The average operative time was 189 minutes. The average hospital stay was 4.6 days. There were no in-hospital deaths. Eighty-two percent of the specimens were classified as complete resection. Conclusion: transanal total mesorectal excision demonstrates adequate specimen quality and surgical margins, being associated with lower rates of perioperative complications, acceptable surgical time and short hospitalization.

Presentación atípica de neoplasia pulmonar: lesiones quísticas pulmonares "no siempre benignas" / Lung cancer presenting as cystic lesions: report of eight cases

Background:: Pulmonary cystic nodules are a relatively frequent finding in chest computed tomography (CT). There is a possible association between this finding and lung cancer. Aim: To report eight patients with malignant lung cystic lesions. Material and Methods: Retrospective analysis of images in a CT database from 2007 to 2015, looking for cystic lesions of the lung with wall thickening, whose pathological diagnosis was lung cancer. Results: We identified eight patients with cystic nodules aged 44 to 77 years, of which five were women. Six were active and two former smokers. The pathological diagnosis was adenocarcinoma in seven cases and squamous cell in one. The mean diameter of the cystic lesions was 11.5 mm. The mean diagnostic delay time was 871 days (range 0-1592). The main finding was a gradual thickening of the nodule walls. Conclusions: The presentation of lung cancer as cystic nodules is uncommon. In this series, the change in morphology due to a thickening of the walls with or without a diameter increase, was the clue for the diagnosis.

Metastatic adenocarcinoma involving the right ventricle and pulmonary artery leading to right heart failure: case report / Adenocarcinoma metastático envolvendo o ventrículo direito e artéria pulmonar levando a insuficiência cardíaca direita: relato de caso

ABSTRACT CONTEXT: Obstruction of the right ventricular outflow tract due to metastatic disease is rare. Clinical recognition of cardiac metastatic tumors is rare and continues to present a diagnostic and therapeutic challenge. CASE REPORT: We present the case of a patient who had severe respiratory insufficiency and whose clinical examinations revealed a giant tumor mass extending from the right ventricle to the pulmonary artery. We discuss the diagnostic and therapeutic options. CONCLUSION: In patients presenting with acute right heart failure, right ventricular masses should be kept in mind. Transthoracic echocardiography appears to be the most easily available, noninvasive, cost-effective and useful technique in making the differential diagnosis.

RESUMO CONTEXTO: A obstrução da via de saída do ventrículo direito devido a doença metastática é rara. O reconhecimento clínico de tumores cardíacos metastáticos é raro e continua a apresentar um desafio diagnóstico e terapêutico. RELATO DO CASO: Apresentamos o caso de um paciente com insuficiência respiratória grave e cujos exames clínicos revelaram massa de tumor gigante, estendendo-se desde o ventrículo direito até a artéria pulmonar. Discutimos as opções diagnósticas e terapêuticas. CONCLUSÃO: Em pacientes com insuficiência cardíaca direita aguda, massas do ventrículo direito devem ser mantidas em mente. Ecocardiografia transtorácica parece ser a técnica mais facilmente disponível, não invasiva, custo-efetiva e útil no diagnóstico diferencial.

Utilidad pronóstica del PET/CT en cáncer de páncreas / Prognostic value of PET/CT in pancreatic cancer

Background: Pancreatic cancer is the tenth most prevalent cancer in world, and represents the fourth cause of cancer death. It has a five year-survival of 5%. Aim: To assess the prognostic value of PET/CT in pancreatic cancer. Material and Methods: Sixty-nine patients with pancreatic adenocarcinoma who underwent staging 18F-fluorodeoxyglucose (FDG) PET/CT between December 2008 and July 2016 were selected. Gender, age, body-mass index, laboratory tests (Ca 19-9, hemoglobin, erythrocyte sedimentation rate, liver enzymes, lactate dehydrogenase), histological differentiation of tumor, American Joint Committee on Cancer (AJCC) stage, size and 18F-FDG uptake (maximal stan-dardized uptake value [SUVmax]) of the primary tumor, nodal involvement and distant metastasis detected by PET/CT were registered. Survival was assessed using Kaplan-Meier curves, Log Rank test and Cox multivariable analysis. Results: Mortality was 66.7%, during a mean observation time of 18 months (range 20 days-66 months). Curative surgery, lack of metastases detected by PET/CT, histologically well differentiated tumors, and SUVmax ≤ 4.3 were significantly associated with a better specific survival, determined by the Log Rank test. Histological differentiation was the only variable that had a statistically significant prognostic value in the multivariable analysis. Conclusions: The detection of distant metastases and the intensity of primary tumor 18F-FDG uptake during PET/CT provide useful prognostic information in pancreatic cancer patients.

Prostate cancer recurrence in vas deferens - fusion image guide as an important tool in dignosis

ABSTRACT The biochemical recurrence after local treatment for prostate cancer is an often challenging condition of clinical management. The aim of this report is to demonstrate the importance of the association of various imaging methods in the identification and subsequent accurate percutaneous biopsy in patients with recurrence of prostate cancer, especially in unusual sites. An 86 years old male with biochemical recurrence, during radiological investigation a PET-MRI was noted the presence of an asymmetry of the vas deferens with PSMA-68Ga uptaken, suggesting the recurrence. A percutaneous fusion biopsy with PET-MRI and ultrasound was performed using transrectal access using ultrasound confirming infiltrating adenocarcinoma of the wall of the vas deferens, compatible with neoplastic prostate recurrence. The fusion image technique combines the real-time view of the US to the possibility of higher definition and higher specificity, methods more anatomical detail as tomography and magnetic resonance imaging, simultaneously. High resolution acquired in PET / MR associated with image fusion allows orientation procedures, even in areas of difficult access, with greater accuracy than conventional techniques.

Adenocarcinoma gástrico y tumor estromal del estómago sincrónico incidental / Gastric adenocarcinoma and incidental synchronous incidental gastrointestinal stromal tumor

Se presenta el caso de un paciente masculino de 73 años de edad operado por adenocarcinoma del antro gástrico. Se practicó gastrectomía subtotal distal más linfadenectomía D2. Durante el examen anatomopatológico de la pieza quirúrgica se encontró otro tumor pequeño en el espesor de la pared del antro cubierto por mucosa normal, separado del adenocarcinoma. El análisis histológico confirmó otra neoplasia incidental sincrónica, un tumor del estroma gastrointestinal de tipo fusiforme, positivo para el marcador tumoral CD117. El objetivo del trabajo es presentar esta asociación tumoral sincrónica, revisar sus características y las teorías etiopatogénicas actuales de esta condición sincrónica según la literatura especializada(AU)

A case is presented of a 73-year-old male patient who was operated for a gastric adenocarcinoma of the antrum. A distal subtotal gastrectomy plus D2 lymphadenectomy were practiced. During the anatomic and pathologic examination of the surgical piece, a second tiny tumor was found in the wall of the antrum and that was covered with a normal mucosa separated from the adenocarcinoma. The histologic examination confirmed another synchronous incidental neoplasm, a spindle-cell gastrointestinal stromal tumor, positive for the tumor marker CD117. This paper is aimed at presenting synchronous tumor entity, to review its characteristics and the current etiologic and pathogenic theories of this synchronic condition according to the specialized literature(AU)

Cáncer sincrónico y metacrónico detectado con PET/CT en población oncológica / Multiple primary malignant neoplasms detected by PET/CT in cancer patients

Background Imaging with F18-fluorodeoxyglucose PET/CT is used to determine sites of abnormal glucose metabolism and can be used to characterize and localize many types of tumors. Aim To assess the prevalence of multiple primary malignant neoplasms (MPMN) detected by PET/CT in cancer patients. Material and Methods F18-fluorodeoxyglucose PET/CT scans performed to 800 patients with a newly diagnosed cancer or with already treated tumors were retrospectively reviewed. In patients whose examination described incidental findings not related to the primary tumor, a research was done about further laboratory, imaging or pathological studies. Results In 188 PET/CT scans (23%) an incidental finding was found. Of these, 66 (35%) were considered as MPMN, 12 as atypical metastases of a known primary tumor, 14 as false positive images (inflammatory or physiologic uptake) and 29 as benign or low grade tumors. In 67 cases (36% of all incidental tumors), the finding was not confirmed. Seven percent of patients with a newly diagnosed tumor had a synchronic MPMN detected by PET/CT. Nine percent of patients with treated tumors developed a metachronous MPMN during their follow up. The most common incidental tumors were thyroid cancer in 15 cases, kidney cancer in 13, lung cancer in 10, colorectal carcinoma in 9, breast cancer in 6, prostate cancer in 4, non-Hodgkin lymphoma in 3 and pancreatic cancer in 2. Conclusions A MPMN is detected by PET/CT in a significant number of cancer patients.

Síndrome de Villaret y adenocarcinoma de pulmón: una asociación infrecuente / Villaret syndrome and lung adenocarcinoma: an unusual association

El síndrome de Villaret se define por la afección de los nervios craneales glosofaríngeo (IX), vago (X), espinal (XI) e hipogloso mayor (XII), en conjunción con el síndrome de Horner homolateral a la lesión. Se produce por compresión de estos nervios y de las fibras vecinas del plexo simpático pericarotídeo en la base del cráneo, en particular, en el espacio retroparotídeo. Si bien es un hecho conocido la invasión del sistema nervioso central en el cáncer de pulmón avanzado, esta particular asociación sintomática es extremadamente infrecuente. Presentamos una paciente con diagnóstico reciente de adenocarcinoma de pulmón que desarrolló, en forma simultánea, este síndrome.

Villaret syndrome is defined by the affection of the glossopharyngeal (IX), vagal (X), accessory (XI) and hypoglossal (XII) cranial nerves associated with ipsilateral Horner syndrome. It is caused by the compression of these nerves and the neighboring sympathetic plexus fibers at the base of the skull, particularly in the retroparotid space. Even though the invasion of the central nervous system in patients with advanced lung cancer is a frequent and well known occurrence, this particular symptomatic association is extremely rare. We are reporting the case of a newly diagnosed lung adenocarcinoma patient who is simultaneously developing this syndrome.

Características endoscópicas y patológicas del cáncer gástrico en un hospital público peruano / Endoscopic and pathological characteristics of gastric cancer in a Peruvian public hospital

RESUMEN Objetivo: Evaluar las características endoscópicas y patológicas del cáncer gástrico del Hospital Nacional Luis N. Sáenz entre 2008 y 2013. Materiales y métodos: Estudio observacional retrospectivo transversal. Se revisó los informes endoscópicos, de pacientes mayores a 30 años, se ingresó al estudio el diagnóstico histológico de adenocarcinoma gástrico, las variables patológicas como tipo histológico, presencia deH. pylori y de metaplasia intestinal e incompleta. Resultados: Se identificó 92 casos de adenocarcinoma gástrico. Prevalencia promedio 0,6%, prevalencia de 0,34% en 2009 y 0,82% en 2013, sexo masculino 62%, femenino 38%, edad menor de 55 años 16%, mayor a 76 años 42%; presentación endoscópica Borrmann III 57%, II 16,3%, IV 15%, V 7,6%, I 3,3%; presentación distal 8 veces más frecuente que la proximal, tipo histológico intestinal 75%, H. pylori presente en 50% casos, metaplasia intestinal en 40% de casos de cáncer gástrico. Conclusiones: Se encontró una alta prevalencia de cáncer gástrico. Frecuente en sexo masculino y en mayores de 76 años, presentación endoscópica más frecuente fue Borrmann III, la presencia de H. pylori y metaplasia intestinal incompleta asociada a cáncer tipo intestinal

ABSTRACT Objective: The endoscopic and pathological characteristics of gastric cancer in Luis N. Sáenz National Hospital between 2008 and 2013. Materials and methods: retrospective cross-sectional observational study. We reviewed the endoscopic reports of patients older than 30 years, we studied the histological diagnosis of gastric adenocarcinoma, pathological variables such as histological type, presence of H. pylori and complete and incomplete intestinal metaplasia. Results: 92 cases of gastric adenocarcinoma were identified. Average prevalence 0.6%, 0.34% in 2009 and 0.82% in 2013; 62% male, 38% female, age less than 55 years 16%, greater than 76 years 42%; endoscopic presentation Borrmann III 57%, II 16.3%, IV 15%, V 7.6%, I 3.3%; 8 times most frequent presentations distal the proximal v, 75% histologic intestinal type, H. pylori in 50% cases, intestinal metaplasia in 40% of cases of gastric cancer. Conclusion: We found high prevalence of gastric cancer. Common in males, and in people over 76, more frequent endoscopic presentation was Borrmann III, the presence of H. pylori and incomplete intestinal metaplasia associated with intestinal cancer type.