[Malignant fibrohistiocytoma of the renal capsule. Report of a case and review of the literature].

Presentation of one case of malignant fibrohistiocytoma derived from the renal capsule. While conducting a bibliographic review the low incidence of this tumoration of renal origin was noted. The difficulties in differentiating this entity from a secondary renal invasion by a malignant fibrohistiocytoma derived from other retroperitoneal structures is commented. Brief review of current diagnosis and therapeutical management for this tumoral entity.