A Solitary Fibrous Tumor with Myxoid Change and Giant Cells of the Kidney

Solitary fibrous tumor of the kidney is exceptionally rare and limited knowledge regarding its behavior makes the prognosis of this tumor difficult. We report a case of solitary fibrous tumor with diffuse myxoid change and numerous giant cells affecting the left kidney of 69 years of age patient. We discuss the pathologic features, the immunohistochemical profile and the differential diagnosis.