Primary Renal Angiosarcoma with Extensive Necrosis : A Difficult Diagnosis

الملخص EN

Angiosarcoma of the kidney is an exceedingly rare and aggressive neoplasm.

Very few cases have been reported in the English literature to date.

We report a case of primary renal angiosarcoma with extensive necrosis and discuss its diagnostic difficulties.

An 86-year-old male presented with a 12 cm necrotic renal mass and multiple pulmonary and hepatic nodules.

A CT guided renal biopsy revealed extensive necrosis and few vascular channels lined by malignant endothelial cells.

Diagnosis was given on a morphologic base and proven by an immunohistochemical study.

Primary renal angiosarcoma should be included among the differential diagnosis of necrotic renal lesions.