A solitary fibrous tumor of the kidney.

Solitary fibrous tumors (SFTs) are rare mesenchymal neoplasms found areas lining the pleura. First reported in 1931, there have been a total of 55 cases of SFTs of the kidney worldwide. In most cases, SFTs presents with hematuria, flank pain, and enlarging abdominal mass. In this case, we report a case of a patient who underwent a radical nephrectomy to remove an SFTs of the kidney with compression of the vena cava. This case further expands upon the importance of diagnosing and assessing the aggressive clinical behavior of SFTs during treatment and follow up.