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OBJECTIVE: We report one case of gonadal stromal testicular tumor and perform a bibliographic review. METHODS/RESULTS: We present the case of a 42 year-old male patient consulting for a painless right testicular mass. Orchiectomy was performed and the patient underwent follow-up. CONCLUSIONS: Nonspecific sexual cord tumors are extremely rare, with slow growing and benign behaviour, presenting positive staining for various markers.

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Objetivos: Presentamos el caso de un tumor testicular del estroma gonadal y revisamos la literatura al respecto. Métodos/Resultados: Presentamos el caso de un varón de 42 años que consulta por bultoma indoloro en testículo derecho, practicándose orquiectomía y seguimiento. Conclusiones: Los tumores de los cordones sexuales no específicos son una entidad extremadamente rara, con un crecimiento lento y comportamiento benigno, que presentan positividad para distintos marcadores (AU)

Objective: We report one case of gonadal stromal testicular tumor and perform a bibliographic review. Methods/Results: We present the case of a 42-year-old male patient consulting for a painless right testicular mass. Orchiectomy was performed and the patient underwent follow-up. Conclusions: Nonspecific sexual cord tumors are extremely rare, with slow growing and benign behaviour, presenting positive staining for various markers (AU)

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OBJECTIVES: To review the influence of various intravesical treatments on superficial bladder cancer recurrence. METHODS: We retrospectively reviewed 473 superficial bladder neoplasias. Based on diagnosis and transurethral resection of bladder tumor (TUR BT), and depending on pathology, we proposed different adjuvant treatment and follow-up schemes. RESULTS: The following factors were independent risk factors for a longer recurrence-free time: intravesical instillations, high dose BCG, and maintenance therapy in comparison to induction. CONCLUSIONS: The use of intravesical instillations independently increases the time to recurrence. It was demonstrated that recurrence was significantly later when high dose BCG and maintenance therapy were employed.

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OBJETIVOS: Revisar la influencia de distintos tratamientos endovesicales sobre la recurrencia del cáncer vesical superficial. METODOS: Se revisaron retrospectivamente un total de 473 neoplasias vesicales superficiales. A partir del diagnóstico y la RTU vesical, y en función del resultado anatomopatológico, se plantearon distintos esquemas de seguimiento y tratamiento complementario. RESULTADOS: Resultaron independientes para explicar mayor tiempo libre hasta la recurrencia superficial los siguientes factores: empleo de lavados endovesicales, tratamiento con dosis altas de BCG y terapia de mantenimiento frente a inducción. CONCLUSIONES: El empleo de instilaciones vesicales incrementaron de forma independiente el tiempo hasta la recidiva. Se demostró que la recurrencia se produjo significativamente más tarde cuando se habían empleado dosis altas de BCG y terapia de mantenimiento (AU)

OBJECTIVES: To review the influence of various intravesical treatments on superficial bladder cancer recurrence. METHODS: We retrospectively reviewed 473 superficial bladder neoplasias. Based on diagnosis and transurethral resection of bladder tumor (TUR BT), and depending on pathology, we proposed different adjuvant treatment and follow-up schemes. RESULTS: The following factors were independent risk factors for a longer recurrence-free time: intravesical instillations, high dose BCG, and maintenance therapy in comparison to induction. CONCLUSIONS: The use of intravesical instillations independently increases the time to recurrence. It was demonstrated that recurrence was significantly later when high dose BCG and maintenance therapy were employed

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OBJECTIVE: The aim of this case report is to add to the literature a new case of renal actinomycosis, but with a form of presentation that has never been reported: renal tumor with retroperitoneal bleeding. METHODS/RESULTS: We present the case of a 27-year-old woman, with a 5-month history of general syndrome and right flank pain. Radiological findings showed a right renal tumor with suspicious of retroperitoneal bleeding. Right radical nephrectomy was performed and the pathological examination of the specimen found actinomyces colonies. The patient received 8 weeks of Penicillin after surgery and had none sequelae. easily diagnosed because of non-specific clinical and radiological findings. Early diagnosis of renal actinomycosis is important to avoid surgery since actinomyces respond well to high doses of Penicillin.

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OBJETIVO: El objetivo de este artículo es añadir que en una forma de presentación nunca antes sido publicada: tumor renal con sangrado retroperitoneal. MÉTODOS: Presentamos el caso de una mujer de 27 años con síndrome constitucional y dolor en flanco derecho de cinco meses de evolución. Las pruebas radiológicas mostraron un tumor renal derecho con sospecha de sangrado retroperitoneal. Se realizó nefrectomía radical derecha y el estudio patológico encontró colonias de actinomices. El paciente recibió penicilina durante ocho semanas después de la cirugía y no tuvo secuelas. CONCLUSIONES: La actinomicosis renal es una infección crónica poco frecuente producida por actinomices, generalmente actinomices israelii, una bacteria gram positiva anaerobia de difícil diagnóstico debido a los hallazgos clínicos y radiológicos inespecíficos. Es importante diagnóstico precoz de la actinomicosis renal para evitar la cirugía, puesto que el actinomices responde bien a altas dosis de penicilina

OBJECTIVE: The aim of this case report is to add to the literature a new case of renal actinomycosis, but with a form of presentation that has never been reported: renal tumor with retroperitoneal bleeding. METHODS/RESULTS: We present the case of a 27 year old woman, with a 5-month history of general syndrome and right flank pain. Radiological findings showed a right renal tumor with suspicious of retroperitoneal bleeding. Right radical nephrectomy was performed and the pathological examination of the specimen found actinomyces colonies. The patient received 8 weeks of Penicillin after surgery and had none sequelae. CONCLUSIONS: Renal actinomycosis is an uncommon chronic infection caused by a gram-positive anaerobic actinomyces bacteria, usually actinomyces israelii, not easily diagnosed because of non-specific clinical and radiological findings. Early diagnosis of renal actinomycosis is important to avoid surgery since actinomyces respond well to high doses of Penicillin

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OBJECTIVES: To report the first case of spontaneous regression of renal vein and inferior vena cava thrombus in a patient with renal clear cell carcinoma. METHODS/RESULTS: We describe the case of a woman with the diagnosis of renal mass with venous thrombus of the renal vein and inferior vena cava. Extension studies before radical nephrectomy showed regression of the thrombus which was confirmed during nephrectomy. CONCLUSIONS: Spontaneous regression of clear cell renal carcinoma metastases is estimated below 1 % of the cases. This is the first case report of regression of a tumoral thrombus of the renal vein and inferior vena cava.

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OBJETIVO: Describir el primer caso deregresión espontánea de trombosis de vena renal y cavainferior en un paciente con carcinoma de células renales.MÉTODO/RESULTADO: Se describe el caso de una mujerdiagnosticada de masa renal con trombosis de venasrenal y cava. En los estudios de extensión previos a lanefrectomía radical se constata la regresión de dicho tromboque se confirma posteriormente tras la nefrectomía.CONCLUSIÓN: La regresión espontánea de metástasisde carcinoma de células renales se estima menor al 1%.Este es el primer caso descrito en la literatura que afectaa una trombosis tumoral de venas renal y cava inferior

OBJECTIVES: To report the first case of spontaneous regression of renal vein and inferior vena cava thrombus in a patient with renal clear cell carcinoma. METHODS/RESULTS: We describe the case of a woman with the diagnosis of renal mass with venous thrombus of the renal vein and inferior vena cava. Extension studies before radical nephrectomy showed regression of the thrombus which was confirmed during nephrectomy. CONCLUSIONS: Spontaneous regression of clear cell renal carcinoma metastases is estimated below 1% of the cases. This is the first case report of regression of a tumoral thrombus of the renal vein and inferior vena cava

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OBJECTIVES: We report three cases of bladder hemangioma. METHODS: Three cases of cavernous hemangioma of the bladder with pathologic confirmation treated by endoscopical resection. RESULTS: There is no evidence of recurrence in either patient after resection. CONCLUSIONS: The endoscopical treatment of small bladder hemangiomas is an effective treatment.

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OBJECTIVES: This cystic hamartoma of the renal pelvis is a very unfrequent benign tumor. We report one case emphasizing its histology and performed a bibliographic review. METHODS: Mid age female patient with the incidental diagnosis of a renal mass taking up the pelvis. RESULTS: A radical nephrectomy was performed with the pathologic report of cystic hamartoma of the renal pelvis. CONCLUSIONS: It is a cystic renal tumor with well-defined histologic and immunohistochemical criteria, and it probably does not involve any danger for the patient's live.

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OBJECTIVES: To report one new case of endometriosis in a patient with history of caesarean section. METHODS: It is the case of a female patient presenting with voiding symptoms and hematuria, with a bladder tumor on ultrasound. RESULTS: After TUR of a retro trigonal tumor pathology report showed bladder endometriosis. Treatment was completed with hormone therapy, being the patient relapse free at one year follow-up. CONCLUSIONS: History of caesarean section is one of the possible etiologies of bladder endometriosis.

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OBJETIVO: Presentar un nuevo caso de endometriosis en una paciente con antecedentes de cesárea. MÉTODO: Se trata de una paciente que consulta por síndrome miccional y hematuria, con hallazgo ecográfico de neoformación vesical. RESULTADOS: Se practica RTU de neoformación retrotrigonal con el resultado anatomopatológico de endometriosis vesical, se completa el tratamiento con terapia hormonal, estando la paciente libre de recidivas al año de control. CONCLUSIONES: Entre las posibles etiologías de la endometriosis vesical se encuentra el antecedente de cesárea (AU)

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