title: [Renomedullary interstitial cell tumor: a case report].
abstract: Renomedullary interstitial tumor is a common tumor in the renal medulla, present in 26-41% of consecutive autopsy specimens. However clinically evident case is infrequent because this lesion is usually small (less than 3 mm). We report a case of renomedullary interstitial tumor in a 76-year-old woman. Ultrasonogram incidentally revealed a mass in the left kidney while she visited to the hospital for hypertension and unstable angina. A CT scan showed a 2 cm mass that was not clearly enhanced. MR images showed low signal intensity in both T1 and T2 images. Arteriography demonstrated no neo-vascularity. Those findings showed that this lesion was benign one or hypovascular carcinoma. So Left nephrectomy was performed and histological examination revealed a renomedullary interstitial tumor.
authors.affiliation: Department of Urology, Wakkanai City General Hospital, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Tsurukawa
authors.forename: H
authors.initials: H
authors.lastname: Iuchi
authors.forename: H
authors.initials: H
authors.lastname: Osanai
authors.forename: S
authors.initials: S
authors.lastname: Yamaguchi
authors.forename: H
authors.initials: H
authors.lastname: Hashimoto
authors.forename: S
authors.initials: S
authors.lastname: Kaneko
authors.forename: S
authors.initials: S
authors.lastname: Yachiku
mesh_terms: D000368:Aged; D003952:Diagnostic Imaging; D005260:Female; D006801:Humans; D007679:Kidney Medulla; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D007984:Leydig Cell Tumor / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D009392:Nephrectomy; D016896:Treatment Outcome