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Archivos Españoles de Urología (Ed. impresa)

Print version ISSN 0004-0614


TORRES GOMEZ, Francisco Javier  and  TORRES OLIVERA, Francisco Javier. Sarcomatoid renal carcinoma with malignant heterologous elements: case report. Arch. Esp. Urol. [online]. 2006, vol.59, n.6, pp.621-624. ISSN 0004-0614.

Objective: The sarcomatoid pattern represents the histological type of renal carcinoma with the poorest prognosis, receiving the grade 4 of the Furhman classification consistently. Methods: We report the case of a 80-year-old male who under went nephr our eterectomy with the pathologic diagnosis of sarcomatoid renal carcinoma with areas of chondro and osteosarcoma, as well as squamous cell differentiation. It is an exceptional case because it is rare to find all these elements in the same tumor. Results: The study of the surgical specimen enables in most cases the identification of some of the classic histological patterns of renal carcinoma, nevertheless an immunohistochemical study is of great value for proper classification of the neoplasia and differential diagnosis with other renal lesions, mainly sarcomas. Conclusions: The presence of malignant heterologous elements, as in our case, will confirm the. prognosis of these neoplasias, which really don’t have an effective treatment.

Keywords : Sarcomatoid renal carcinoma.

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