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[Renal solitary fibrous tumor with hemangiopericytoma-like pattern--a case report].

A 67-year-old man was referred to our clinic with a complaint of macroscopic hematuria. He had been treated for schizophrenia in a psychology ward. Computed tomography (CT) scan revealed a left renal tumor 7 cm in size, well enhanced in early phase. Doppler ultrasonography indicated hypervascular left renal tumor. Laparoscopic radical left nephrectomy was performed under the diagnosis ofrenal cancer. Histopathlogical results showed a renal solitary fibrous tumor (SFT) with a hemangiopericytoma-like pattern. Renal SFT is an uncommon tumor. The present case is the 11th reported case of SFT with hemangiopericytoma-like pattern in the Japanese literature.