Quistes de Rafe medio genitoperineal / Genitoperineal median Raphe cysts

Los quistes del rafe medio representan defectos del desarrollo embriológico de la zona genitc cuentran tapizados por diferentes epitelios según su ubicación. Estas lesiones, que son más comúnmente hall ca del meato uretral, pueden localizarse en cualquier lugar del rafe medio genitoperineal, desde el glandi ano. El tratamiento de elección es la escisión quirúrgica. Presentamos tres nuevos casos y revisamos la literatura.

[Renal cell carcinoma associated with renal angiomyolipoma and renal cortical adenoma]. / Carcinoma de células renales asociado con angiomiolipoma renal y adenoma cortical renal.

OBJECTIVE: To report a case of renal cell carcinoma associated with renal angiomyolipoma and renal cortical adenoma and discuss the possibility of a hereditary etiology. METHODS: A 64-year-old patient with a tumor in the right kidney underwent right renal nephrectomy. The pathological findings revealed a clear cell renal carcinoma, two cortical angiomyolipoma and a renal cortical adenoma. The literature on these three coincident renal tumors is reviewed. RESULTS: The association of these three renal tumors is rare and is usually seen in patients with tuberous sclerosis. CONCLUSIONS: Renal angiomyolipoma is a benign tumor frequently associated with Bourneville's disease or tuberous sclerosis, a disorder of autosomal dominant transmission. Familial evidence of renal cell carcinoma has been previously reported, as in von Hippel-Lindau disease. It has been suggested that heredity may play an important role in the association of renal cell carcinoma and other renal tumors.

Polipo fibroepitelial del ureter: aporte de un nuevo caso: Revisión de la literatura / Fibroepithelial polyp of the ureter: case report: Review of the literature

Los pólipos fibroepiteliales son tumores benignos que se pueden manifestar a lo largo de todo el tracto urinario. Se presenta un caso de pólipo fibroepitelial en uréter. Revisamos la literatura y discutimos las características clínicas, diagnósticas y terapéuticas de esta rara entidad

[Fournier's gangrene. Our experience over 10 years. A review of the literature]. / Gangrena de Fournier. Nuestra experiencia en los últimos 10 años. Revisión de la literatura.

OBJECTIVE: To report our experience over the last 10 years with Fournier's gangrene, an extensive fulminant infection of the perineoscrotal region, and to review the literature. METHODS: The medical records of 9 patients with Fournier's gangrene that had been diagnosed from January 1988 to December 1997 were reviewed. Patient age, etiology and predisposing factors, microbiological findings, duration of hospital stay, treatment and outcome were analyzed. RESULTS: The mean age of the patients was 53.8 years (range 43-71). The source of the gangrene was perirectal (22.22%), urinary (66.66%) and cutaneous (11.11%). Predisposing factors included diabetes mellitus, alcoholism, malnutrition and low socio-economic status. All patients were treated with surgical debridement and broad-spectrum antimicrobial therapy. Two patients underwent delayed reconstructive surgery. Cystostomy was performed in 100% of the cases. Two patients died from severe sepsis. CONCLUSIONS: Necrotizing fasciitis of the perineum and genitalia is a severe condition with a high morbidity and mortality. Good management is based on aggressive debridement, broad-spectrum antibiotics and intensive supportive care.

[Ureteral bladder augmentation. Report of 5 cases]. / Ampliaciones vesicales con uréter. Communicación de cinco casos.

OBJECTIVES: To describe 5 cases of ureteral bladder augmentation. METHODS: From may 1995 to september 1997, ureterocystoplasty was performed on 5 patients (3 males and 2 females), aged 2 to 18 years (mean 9.8). The mean follow-up was 16.6 months (range 4-28). RESULTS/CONCLUSION: Augmentation ureterocystoplasty has the beneficial effects of enterocystoplasty without the complications that may arise from the use of bowel segments. It is a simple surgical technique whose outcome depends entirely on careful patient selection.

Relación entre la expresión de antigenos ABH en cancer de vejiga y caracter secretor / The relationship between the expression of ABH secretor character

Existe amplia evidencia de que el cáncer está asociado con anormalidades en la regulación génetica expresada en la superficie de la membrana celular. El 80 por ciento de los individuos son capaces de secretar los antígenos ABH en saliva y otras secreciones. La presencia de estas sustancias está controlada por un gen que puede adoptar dos formas alélicas: SE dominante y SE recesiva. El objetivo de este trabajo fue investigar la relación entre la expresión antigénica ABH en célkulas de descamación urotelial y el carácter secretor en pacientes con cáncer de vejiga. Se examinaron 33 pacientes con tumores de vejiga clasificados en superficiales y profundos y una población de 40 individuos normales. Se investigó el carácter secretor en saliva y la expresión de los antígenos ABH uroteliales en sedimentos urinario. Se empleó para estos estudios la técnica de inhibición de la aglutinación. En la población normal todos expresaron los antígenos ABH en células de sedimento urinario y sólo el 80 por ciento presentó dichos antígenos en sus secreciones. En los pacientes con cáncer de vejiga el 30,31 por ciento resultó no secretor y de ellos el 70 por ciento presentó deleción antigénica ABH en sedimento urinario con mayor incidencia de tumores profundos. Nuestros resultados indicarían que los pacientes con cáncer de vejiga no secretores desarrollarían tumores con mayor grado de infiltración respecto de los pacientes secretores

[Low-grade papillary transitional-cell carcinoma of the distal urethra with focal squamous differentiation and association with human papillomavirus types 6-11]. / Carcinoma transicional papilar, de bajo grado, de uretra distal, con diferenciación escamosa focal y asociación con virus papiloma humano, tipos 6-11.

OBJECTIVE: To report a case of transitional cell carcinoma of the urethra associated with human papilloma virus (HPV) infection in areas of squamous differentiation of the neoplasm. METHODS/RESULTS: A 32-year-old male with a previously treated condylomata acuminatum of the prepuce presented with a verrucous lesion in the penile meatus, corresponding to well differentiated, low grade papillary transitional cell carcinoma with squamous differentiation. Histological viral expression of HPV was confirmed by in situ hybridization. CONCLUSION: We emphasize the rare presentation of transitional carcinoma in the distal urethra associated with HPV infection.