A case of membranoproliferative glomerulonephritis associated with metastatic colon cancer

No abstract available.

Resultados del tratamiento quirúrgico del cáncer del tercio superior del recto y de colon sigmoides: análisis comparativo / Comparative results of the surgical treatment of tumors located in the upper third of the rectum and sigmoid colon

Background: Tumors located in the upper third of the rectum can be treated in the same way as sigmoid tumors. This means that mesorrectum excision and neoadjuvant therapies are not necessary. Aim: To compare the results in terms of relapse and survival of elective surgery for sigmoid and upper third rectal tumors. Material and Methods: Retrospective analysis of patients operated for an upper third rectal or sigmoid cancer that were prospectively included in a database and had a minimum follow up of 18 months. Clinical and pathological variables and staging using TNM classification were considered as covariates in the analysis. Results: Fifty patients with a tumor of the upper third of the rectum, aged 30 to 84 years (24 females), with a follow up ranging from 12 to 206 months, and 107 patients with a sigmoid tumor, aged 22 to 91 years (62 females), with a follow up ranging from 13 to 204 months, were analyzed. Seven patients with rectal tumors (14 percent) and 12 patients with sigmoid tumors (11 percent), died during follow up (p = NS). Ten years actuarial overall survival was 85 percent for both groups. Conclusions: No differences in survival or relapse were observed in this group of patients with tumors located in the upper third of the rectum or sigmoid colon. Therefore both types of tumors can be treated in the same way.

Introducción: Se ha sugerido que los pacientes con un tumor del tercio superior del recto (RS) podrían tratarse en forma similar que los portadores de un cáncer de sigmoides (CS). Ello implica no realizar la resección total del mesorrecto ni someterlos a terapias neoadyuvantes. El objetivo de este estudio es comparar los resultados del tratamiento quirúrgico electivo de ambos tumores respecto de la recidiva y la sobrevida global. Pacientes y Método: Análisis retrospectivo de las características demográficas de los pacientes intervenidos por un adenocarcinoma de recto superior y de colon sigmoides con intención curativa en forma electiva en forma consecutiva con un seguimiento mínimo de 18 meses. Se considera variables clínicas (edad, género, enfermedades asociadas, antígeno carcinoembrionario (CEA) preoperatorio), histopatológicas (diferenciación y tamaño tumoral, número de ganglios examinados) y la estadificación de ambos grupos según TNM. Resultados: Se compara 50 pacientes portadores de un adenocarcinoma de RS en los estadios I a III con 107 pacientes intervenidos en el mismo período por un cáncer de CS con intención curativa. El seguimiento promedio de los pacientes con un tumor de RS fue de 88,62 meses (extremos 12-206), y de 71,67 meses en los casos de CS (extremos 13-204) (p = 0,05). Durante este período fallecen por la enfermedad 7 pacientes (14 por ciento) del grupo RS, 1 por recidiva locorregional y 6 por recidiva a distancia, con un rango entre 12 y 78 meses. En el grupo CS fallecen 12 pacientes (11,2 por ciento), 3 (2,8 por ciento) con recidiva locorregional y 9 con recidiva a distancia, entre 24 y 82 meses de seguimiento (p = 0,24). La sobrevida actuarial global a 10 años para ambos grupos fue de 85 por ciento. Conclusión: En este estudio no existen diferencias en cuanto a la recidiva global, la recidiva local ni la recidiva a distancia entre ambos grupos, lo que avala la estrategia de tratar en forma similar los tumores...

Epithelioid hemangioma of the colon: a case report / Hemangioma epitelióide do cólon: relato de caso

CONTEXT: Epithelioid hemangioma or angiolymphoid hyperplasia with eosinophilia is an uncommon benign vascular neoplasm that is usually located on the face or neck. Exceptionally, it has been described affecting the colon, with only two such cases described in the worldwide literature. The aim here was to present a case of primary epithelioid hemangioma of the sigmoid colon with confirmation by immunohistochemical examination. CASE REPORT: A 37-year-old woman had had a complaint of intermittent abdominal pain for six months. Two months after the condition started, she began to present changes in her intestinal habit, with evacuations containing blood and mucus and a weight loss of 4 kg over this period. At physical examination, a palpable mass was noted in the lower left quadrant of the abdomen. Neoplasia of the colon was clinically suspected and she underwent colonoscopy. This demonstrated the presence of a vegetating sessile lesion of approximately 5 cm in diameter, at a distance of 36 cm from the anal margin. It occupied 80 percent of the intestinal lumen. A biopsy collected during the examination suggested a diagnosis of neoplasia of vascular origin. After surgical resection, histopathological examination of the resected specimen confirmed the diagnosis of epithelioid hemangioma of the colon, which was backed up by the immunohistochemical panel (factor VIII, Ki-67, CD-34). At present, three years after the surgery, the patient is asymptomatic, she has recovered her normal weight and she has normal findings from control colonoscopy. Despite the rarity of neoplasia of vascular origin, this possibility should be considered in the differential diagnosis for colorectal tumors.

CONTEXTO: Hemangioma epitelióide ou hiperplasia angiolinfóide com eosinofilia são neoplasias vasculares benignas raras, habitualmente localizadas na face e pescoço. O acometimento do intestino grosso é excepcionalmente descrito, existindo apenas dois casos descritos na literatura mundial. O objetivo deste artigo é apresentar um caso de hemangioma epitelióide primário do sigmóide com diagnóstico histopatológico confirmado por meio de estudo imunoistoquímico. RELATO DE CASO: Mulher de 37 anos apresentou queixa de dor abdominal de forte intensidade, intermitente, localizada no hipogástrio. Dois meses após o início do quadro, notou alteração do hábito intestinal, evacuações com sangue, muco e perda ponderal de 4 quilos no período. Ao exame físico abdominal, identificou-se massa palpável no quadrante inferior esquerdo. Com suspeita clínica de neoplasia de cólon foi submetida a colonoscopia, que demonstrou presença de lesão vegetante de aproximadamente cinco centímetros de diâmetro, ocupando cerca de 80 por cento da luz colônica. A biópsia mostrou a presença de neoplasia de origem vascular. Após a ressecção cirúrgica, o exame histopatológico do espécime extirpado estabeleceu o diagnóstico de hemangioma epitelióide do cólon, confirmado por meio de painel imunoistoquímico (fator VIII, Ki-67, CD-34). No momento, a paciente encontra-se bem, tendo recuperado o peso inicial três anos após a cirurgia e apresenta resultado de colonoscopia de controle normal. Não obstante a raridade, deve-se considerar a possibilidade das neoplasias de origem vascular no diagnóstico diferencial dos tumores colorretais.

Tumor diverticular que imita una enfermedad neoplásica en un paciente VIH-positivo / Diverticular tumor imitating neoplastic disease in an HIV positive patient

Introducción: A pesar de que en la era de la terapia antirretroviral de alta eficacia (HAART) la incidencia de los tumores malignos en la población VIH/SIDA está en creciente aumento y es actualmente su mayor causa de muerte, estos pacientes también pueden presentar lesiones tumorales de origen inflamatorio, micótico, parasitario, o bacteriano, que en algunos casos puede resultar muy difícil diferenciar de una neoplasia antes de la exéresis quirúrgica completa de la lesión. Objetivo: Comunicar el caso de un paciente VIH-positivo con un tumor inflamatorio de origen diverticular y discutir los posibles diagnósticos diferenciales. Paciente y método: Paciente masculino de 42 años, drogadependiente y VIH positivo (estadio AI), en tratamiento con HAART, con constipación y mucorrea de 4 años de evolución y proctorragia postevacuatoria y dolor abdominal a predominio de FII intermitentes desde hace un año. Examen fisico, laboratorio de rutina, CEA y perfil inmunológico normales. La videocolonoscopía y el colon por enema mostraron una estenosis sigmoidea infranqueable con mucosa conservada. La tomografia computada abdominopelviana evidenció engrosamiento parietal del colon sigmoides y múltiples ganglios no adenomegálicos. Resultados: Se indicó el tratamiento quirúrgico con el diagnóstico de un probable tumor extramucoso benigno, o de bajo grado de malignidad. Se encontró un tumor sigmoideo duro-elástico de 9 x 7 cm, con la serosa congestiva y adherencias laxas a la cara posterior de la vejiga, acompañado por varias adenopatías mesentéricas. Se realizó una resección anterior con carácter oncológico. Abierta la pieza se constató un gran engrosamiento parietal con mucosa edematosa. No tuvo complicaciones postoperatorias. La anatomia patológica informó una enfermedad diverticular del colon con peridiverticulitis y marcada fibrosis parietal. (TRUNCADO) (AU)...

Introduction: Despite the fact that in the highly active antiretroviral therapy (HAART) era the incidence of malignant tumors in HIV/AIDS population is increasing, and is currently the major cause of death, these patients can also present tumoral lesions of inflammatory, fungal, parasitic, or bacterial origin in some cases very difficult to differentiate from a neoplasia before complete surgical resection. Objective: Report on a HIV positive patient with an inflammatory diverticular tumor, and discuss the possible differential diagnosis. Patient and methods: Male, 42 years old, intravenous drug abuser, and HIV-positive (AI stage), on HAART, complaining of constipation and mucous discharge the last 4 years, and intermittent rectal bleeding and abdominal pain (predominantly in the right iliac fossae) the last year. Physical examination, blood tests, CEA, and immune status were normal. Colonoscopy and barium enema showed a not negotiable sigmoid stenosis with normal mucosa. The computed tomography of the abdomen and pelvis showed parietal thickening of the sigmoid colon and multiple not enlarged lymphoid nodes. Results: Surgical treatment, with the diagnosis of probable extramucosal benign or low-grade malignant tumor, was indicated. A 9 x 7 cm, rubber consistency sigmoid tumor was found. It had congestive serosa and smooth adhesions to the posterior aspect of the bladder, associated with several mesenteric nodes. An oncologíc anterior resection was carried out. The opened specimen showed a 4 cm thickening of the intestinal wall, with edematous, non tumoral mucosa. The postoperative course was uneventful. The histopathology report was diverticular colonic disease with peridiverticulitis, and marked parietal fibrosis. Conclusion: Currently, in the HIV-positive population the incidence of malignant tumors related or not to AIDS has increased, due to better management of opportunistic infections, and the best life expectancy... (TRUNCADO)

External resection of a giant sigmoid lipoma causing colonic intussusception and prolapse through the anal canal.

We depict the case of an 80-year-old female patient who presented to us with a history of protruding mass per anum. Sigmoidoscopy revealed a large globular pedunculated polyp at 22 cm from the anal verge resulting in a sigmoidorectal intussusception. Endoscopic polypectomy was not technically possible due to the large size of the polyp. At the time of prolapse the polyp was tied at its pedicle with thread and resected surgically. The patient is asymptomatic on follow-up.

Well-differentiated adenocarcinoma of the rectosigmoid colon associated with psammoma bodies: a case report.

This report documents an unusualfinding of scattered psammomatous-type calcification in a well-differentiated adenocarcinoma of the rectosigmoid colon in a 54-year-old woman. The clinical relevance of this histologic feature is discussed, in light of review of the literature.

Endometrial Stromal Sarcoma of the Sigmoid Colon Arising in Endometriosis :A Case Report with a Review of Literatures

Most of malignant tumors arising in ovarian and extraovarian endometriosis are carcinomas. Mixed mullerian tumor and endometrial stromal sarcoma arising in intestinal endometriosis are rarely described, but its clinicopathologic features have not been well characterized. Here we report a case of endometrial stromal sarcoma of the sigmoid colon arising in endometriosis with a review of six additional cases of endometrial stromal sarcoma arising in intestinal endometriosis found in English literatures. The patients ranged in age from 36 to 64 yr. Presenting symptoms were pain, bloody diarrhea, and tenesmus. Some patients had a previous history of endometriosis. Most of the tumors arose in the rectosigmoid colon. The histologic features were the same as their uterine counterpart. No death of disease had been reported. This rare tumor should not be confused with gastrointestinal stromal tumor clinically and histologically.

Adenoma velloso hipersecretante del colon sigmoides / Hypersecretive villous adenoma of the sigmoid colon

Se presenta el caso de una paciente de 41 años portadora de un adenoma velloso (AV) hipersecretante del colon sigmoides que es hospitalizada de urgencia por deshidratación y shock hipovolémico secundaria a una diarrea mucosa de un año de evolución, con falla prerrenal y acidosis metabólica, marcada hipokalemia y baja de peso de 6 kg. Luego de una vigorosa reposición hidroelectrolítica, el estudio de la diarrea reveló la presencia de un tumor velloso de 10 cm en el colon sigmoides, logrando identificarse el AV tanto al enema baritado como a la colonoscopia. Fue sometida en forma electiva a una resección anterior con buena evolución postoperatoria, cesando la diarrea en forma abrupta. El estudio histopatológico de la pieza demostró un adenoma velloso gigante sin displasia

Colorectal adenocarcinoma as a second malignant neoplasm following rhabdomyosarcoma of the urinary bladder: a case report

Following improvements in therapy for childhood malignancies, the striking increase in survival rate over the past 30 years has led to the increase risk of developing second malignant neoplasms (SMNs). We report a case of colorectal carcinoma as a SMN, following treatment for rhabdomyosarcoma. The patient was diagnosed with rhabdomyosarcoma of the urinary bladder at his age of three years, and developed adenocarcinoma in the colon 13 years later. Histologic examination of the surgical specimen revealed adenocarcinoma involving the rectosigmoid area with radiation colitis in its background. The tumor cells showed strong immunoreactivity for p53 protein, suggesting the role of irradiation and p53 mutation in carcinogenesis. This case emphasizes the need for dose observation in survivors of early childhood malignancies treated with radiation and multiagent chemotherapy.

Colorectal adenocarcinoma as a second malignant neoplasm following rhabdomyosarcoma of the urinary bladder: a case report

Following improvements in therapy for childhood malignancies, the striking increase in survival rate over the past 30 years has led to the increase risk of developing second malignant neoplasms (SMNs). We report a case of colorectal carcinoma as a SMN, following treatment for rhabdomyosarcoma. The patient was diagnosed with rhabdomyosarcoma of the urinary bladder at his age of three years, and developed adenocarcinoma in the colon 13 years later. Histologic examination of the surgical specimen revealed adenocarcinoma involving the rectosigmoid area with radiation colitis in its background. The tumor cells showed strong immunoreactivity for p53 protein, suggesting the role of irradiation and p53 mutation in carcinogenesis. This case emphasizes the need for dose observation in survivors of early childhood malignancies treated with radiation and multiagent chemotherapy.

Adenocarcinoma de cólon sigmóide com invasäo vesical / Adenocarcinoma of the colon involving bladder

Apresentamos uma série de 10 pacientes com adenocarcinoma de intestino grosso com invasäo vesical, operados no nosso Hospital. Em 8 casos realizamos cistectomia parcial com ressecçäo de sigmóide e nos 2 casos restantes, cistectomia radical com neobexiga ortotópica e ressecçäo de sigmóide. Com um seguimento médio de 27 meses, 7 pacientes se encontram assintomáticos e livres da enfermidade

Polipos intestinales en la infancia / Intestinal polyps in childhood

Desde 1965 a 1987 se resecaron 230 pólipos en pacientes entre 8 meses y 16 años de edad, 147 ocurrieron en varones y 83 en niñas. El síntoma predominante fue la enteroproctorragia. La localización en rectosigma fue la más frecuente (96%). Los pólipos medían entre 0.8 y 2 cm. Sólo uno fue mayor de 5 cm, con obstrucción duodenal y asociado a pólipo gástrico. Los pólipos solitarios constituyeron el 93.9%. El síndrome de Peutz-Jeghers, 1.73% y la poliposis múltiple juvenil el0.87%. En este período se registraron 3 adenocarcinomas en niños mayores de 9 años, lo que representa el 1/3%. Reexaminamos la histología de 200 pólipos y se rectificó el diagnóstico en 21 casos (10.5%). El tipo histológico predominante fue el pólipo juvenil. Dentro de esta variante observamos el patrón clásico en el 71.5%; lesiones tempranas en el 26.3% y cambios hiperplásicos o metaplásicos en el 2.1%; 6 casos corrspodieron a adenoma tubular (pólipo adnomatoso), (3%) y uno a adenoma túbulo-velloso asociado a adenocarcinoma mucosecretante. La poliposis múltiple juvenil (2 casos) ocurrió en niñas de 13 y 14 años, con más de 40 pólipos colónicos. El tratamiento fue la colectamía. El empleo de la polipectomía endoscópica mediante la colonoscopía, resulta un método útil para el diagnóstico y tratamiento. La histología en nuestra revisión enfatiza que si bien el pólipo juvenil es la patología más frecuente, otras lesiones están presentes en esta etapa de la vida y constituyen un grupo de riesgo por su vinculación con el carcinoma de intestino o tumores en otra localización

The changing anatomic distribution of colorectal cancer at San Pablo medical center

Reportes recientes ha indicado una migración proximal en la localización de cáncer de intestino grueso. Un análisis de 163 casos en el Centro Médico San Pablo durante el período de 1980-86 reveló un aumento en las lesiones del lado derecho. En la mayoría de los casos la patología demostró invasión de la pared intestinal (Duke's C). Estos hallazgos deben ser dirigidos hacia el cernimiento del intestino grueso en su totalidad y no hacia el lado izquierdo como tradicionalmente se realizaba

Pseudotumor esquistossomótico de cólon: relato de um caso / Schistosomotic psedotumor of the colon: a case report

Relata-se um caso de pseudotumor esquistossomótico localizado em junçäo sigmóide descendente simulando neoplasia maligna; fazem consideraçöes a respeito da raridade da patologia, sua etiologia e a localizaçäo mais freqüente em cólon descendente e sigmóide. Discutem-se os meios de diagnóstico onde o exame anatomopatológico tem uma importância fundamental e fazem referência à conduta terapêutica através da laparotomia exploradora quando a lesäo pseudotumoral está avançada