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Inicio Actas Urológicas Españolas Tumor extragonadal de células germinales con fenómeno “burned-out” en test...
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Vol. 23. Issue 10.
Pages 880-884 (January 1999)
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Vol. 23. Issue 10.
Pages 880-884 (January 1999)
Tumor extragonadal de células germinales con fenómeno “burned-out” en testículo
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A. Ojea calvo1, A. Rodriguez alonso, D. Perez garcia, F. Dominguez freire, A. Alonso rodrigo, B. Rodriguez iglesias, J. Benavente delgado, J.M. Barros rodriguez, C. Fiaño valverde, J.L. Nogueira march
Servicio de Urología. Hospital Xeral de Vigo. Vigo (Pontevedra)
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Resumen

El fenómeno “burned-out” en las neoplasias germinales se define por la presencia de un tumor germinal extragonadal sin tumor a nivel de los testículos, en los que se detecta una serie de lesiones histológicas características, que orientan hacia la existencia previa de una tumoración de testículo que ha desaparecido. Los tumores de células germinales extragonadales con fenómeno “burned-out” evolucionan mejor que sus homónimos primarios y se tratan de la misma manera que los tumores primarios de testículo. Actualmente, el estudio ecográfico escrotal con transductores de alta frecuencia, en presencia de una tumoración retroperitoneal, puede inducir a la sospecha de este cuadro de involución tumoral. Aportamos un seminoma retroperitoneal con fenómeno “burned-out” en el testículo homolateral, en un paciente de 35 años. Los criterios clínicos y radiológicos disponibles, eran suficientes para tener la sospecha diagnóstica del cuadro. Se practicó orquiectomía homolateral y biopsia de la tumoración retroperitoneal, completando el tratamiento con poliquimioterapia. La evolución fue buena, con respuesta completa inmediata.

Palabras clave:
Tumor de testículo
Tumor extragonadal
Seminoma
Burned-out
Abstract

The “burned-out” phenomenon in germ-cell neoplasias is defined by the presence of an extragonadal germ-cell tumour with no tumour at the testis level where a series of distinctive histological lesions can be detected indicative of the earlier presence of an already disappeared testicle tumoration. Extragonadal germ-cell tumours with “burned-out” phenomenon show better evolution than their primary counterparts and are treated similarly to primary tumours of the testis. Currently, in the presence of retroperitoneal tumoration, a scrotal ultrasound study with high frequency transducers can lead to a suspected picture of tumoral involution. This paper contributes one retroperitoneal seminoma with “burned-out” phenomenon in the homolateral testis in a 35-year old patient. Available clinical and radiological criteria were enough to reach a suspected diagnosis. Homolateral orchiectomy and biopsy of retroperitoneal tumoration were performed, rounding treatment up with polychemotherapy. Evolution was good with immediate complete response.

keywords:
Testis tumour
Extragonadal tumour
Seminoma
Burned-out

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