Solitary fibrous tumour of the kidney: A case report

A solitary fibrous tumour (SFT) is an unusual spindle cell neoplasm that usually occurs in the pleura but has recently been described in diverse extrapleural sites. Urogenital localisation is rare, and to our knowledge, only 82 cases of SFT of the kidney have been described. Although SFT of the kidney is extremely rare, this tumour must be included in the differential diagnosis, whenever a renal tumour consisting of mesenchymal elements is encountered. We report a case of a large SFT of the left kidney which was clinically and radiologically thought to be a renal cell carcinoma, and a final diagnosis was made after immunohistochemical study.