Pleomorphic undifferentiated sarcoma: A case of a giant renal mass
نویسندگان
چکیده
Renal cell cancers are the most prevalent type of malign renal masses. Sarcomas are one of the rarest subtypes. Primary renal sarcomas make up 1e3% of all renal malign masses. Previously known as malign fibrosis histiocytoma (MFH), pleomorphic undifferentiated sarcoma (PUS) is the most prevalent soft tissue tumor in adults, with a 20% occurrence rate. PUS has a histologically wide range, the most prevalent forms being storiform and mixed form including pleomorphic areas. These tumors usually originate from renal parenchyma, and rarely from renal capsule.1 We present the diagnostic, therapeutic and pathological characteristics of a case of a giant renal PUS.
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