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Inicio Actas Urológicas Españolas Carcinoma renal sarcomatoide localizado. ¿qué factores pueden prever su evoluc...
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Vol. 26. Issue 1.
Pages 60-65 (January 2002)
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Vol. 26. Issue 1.
Pages 60-65 (January 2002)
Carcinoma renal sarcomatoide localizado. ¿qué factores pueden prever su evolución?
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D. Muñoz Vélez1,a, J.M. Benejam Guala, R. García-Miralles Gravalosa, I. Matanza Rodríguez*,a
a Servicio de Urología. Servicio de Anatomía Patológica. Fundación Hospital de Manacor. Manacor (Mallorca)
* Servicio de Anatomía Patológica. Fundación Hospital de Manacor. Manacor (Mallorca)
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Resumen

El carcinoma renal sarcomatoide constituye una variante poco frecuente del carcinoma renal. Típicamente su comportamiento es más agresivo que el de otras formas de carcinoma de células renales, siendo habitualmente diagnosticado en estadios avanzados. El principal factor pronóstico es el estadio en el momento del diagnóstico. Sin embargo, algunos casos inicialmente se presentan aparentemente en estadios bajos mostrando igualmente un mal pronóstico probablemente porque existan otros factores, además del estadio, que determinen su evolución. Presentamos un caso de carcinoma renal sarcomatoide órgano-confinado en el momento del diagnóstico que presentó una evolución fulminante. Revisamos las características de estos tumores y analizamos que otros factores, fundamentalmente histológicos, que además del estadio clínico pueden ayudar a predecir la evolución del tumor.

Palabras clave:
Carcinoma renal sarcomatoide
Factores pronósticos
Tratamiento
Abstract

Sarcomatoid renal carcinoma constitutes an uncommon variant of renal carcinoma. Typically its behaviour is more aggressive than other forms of renal carcinoma and usually it is diagnosed at advanced stages. The main prognostic factor is the clinical stage at the time of the diagnosis. However, some cases initially are diagnosed at low stages having a poor prognosis, probably because there are other factors than the clinical stage which determinate its outcome. We report a case of sarcomatoid renal carcinoma confined inside the kidney capsule at the time of the diagnosis which had a rapidly bad progression. We review the characteristics of this tumour variant and analyse what factors, basically histological, could be helpful to predict its evolution.

Key words:
Sarcomatoid renal carcinoma
Prognostic factors
Treatment

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