Fibrosarcoma of kidney.
A case of fibrosarcoma of the kidney is presented. Clinical and radiologic features are discussed. The arteriographic features of this tumor are indistinguishable from adenocarcinoma of the kidney. Microscopically, this tumor may be confused easily with leiomyoma or leiomyosarcoma, Special staining techniques with van Gieson and Mallory trichrome stains and electron microscopy help establish diagnosis.