title: Distant metastasis from benign solitary fibrous tumor of the kidney.
abstract: Solitary fibrous tumor (SFT) rarely occurs in the kidneys, and only one reported case of renal SFT has shown distant metastasis. We report the second case of renal SFT exhibiting distant metastasis. A 48-year-old man was referred to our hospital because of a right renal mass. An abdominal CT scan detected a large renal tumor, which was suspected to be a renal cell carcinoma. Right radical nephrectomy was performed, and the tumor was found to measure 28 × 18 × 10 cm. The pathological diagnosis was benign solitary fibrous tumor of the kidney. Eight years after the operation, lung and liver metastases developed. Pulmonary segmentectomy and partial hepatectomy were performed. The pathological diagnoses of these resected tissue specimens were compatible with benign SFT.
authors: Department of Urology, St. Marianna University School of Medicine, Kawasaki, Japan.
authors: Hideo
authors: H
authors: Sasaki
authors: Tsuyoshi
authors: T
authors: Kurihara
authors: Yuichi
authors: Y
authors: Katsuoka
authors: Toru
authors: T
authors: Nakano
authors: Maki
authors: M
authors: Yoshioka
authors: Satetsu
authors: S
authors: Miyano
authors: Yuichi
authors: Y
authors: Sato
authors: Iwao
authors: I
authors: Uejima
authors: Masahiro
authors: M
authors: Hoshikawa
authors: Masayuki
authors: M
authors: Takagi
authors: Tatsuya
authors: T
authors: Chikaraishi
keywords: CD34; Kidney; Malignant; Metastasis; Solitary fibrous tumor