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Gaceta médica de México

versión On-line ISSN 2696-1288versión impresa ISSN 0016-3813


CESAREO, B; COSTERO-BARRIOS  y  OROS-OVALLE, Cuauhtémoc. Primary Renal Angiosarcoma. Gac. Méd. Méx [online]. 2004, vol.140, n.4, pp.463-466. ISSN 2696-1288.

The twenty-fourth case of primary renal angiosarcoma is described, according to the available internacional literature, this present in a 71-year-old male, a mechanic by trade, without carcinogenic antecedents. Hematuria, pain in flank, and left side tumoral mass of approximately 20 cm in diameter located in kidney by computerized axial tomography (CT) constituted manifestations. A left nefrectomy was performed. No metastasis was found. The tumor replaced 4/5 of the organ and weighed 1145 g It showed angiomatous structure with atypical proliferation of endothelial cells in a sinusoidal trauma and anastomosatic vascular channels that invaded neighboring parenchymal and capsule. Tymorous cells were positive for CD31 and CD34 and negative for cytokeratins, S100 and HMB 45 proteins. The patient was subjected to treatment with chemotherapy and radiotherapy (lineal accelerator), but 12 months after surgery he presented retroperitonal tumoral relapse and hepatic metastasis. Diagnostic differentiation with benign vascular tumors is pointed out, as well as carcinomas and sarcomas that showed an outstanding angiomatous component, both primary and/or secondary. Primary renal angiosarcoma exposes the multiplicity of localizations that it is capable of with a tumor of this type, as well as renal parenquimatous capacity to be the seat of a great variety of neoplasias.

Palabras llave : Angiosarcoma; kidney.

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