title: Parapelvic neurofibroma of the kidney.
abstract: We report the first case of neurofibroma causing obstruction by external compression of the upper renal pelvis. A 33-year-old woman reported a 1-year history of dull lumbar pain on the right side. A right renal parapelvic cyst was suspected. The patient underwent retroperitoneoscopic exploration. The right renal parapelvic lesion was identified as a soft tissue tumor. The tumor was removed with a retroperitoneoscopic procedure. Histopathological findings revealed neurofibroma.
authors.affiliation: Department of Urology, Koseiren Nagaoka Chuo General Hospital, Niigata, Japan. nkh@niigata-inet.or.jp
authors.forename: T
authors.initials: T
authors.lastname: Nishiyama
authors.forename: T
authors.initials: T
authors.lastname: Ikarashi
authors.forename: M
authors.initials: M
authors.lastname: Terunuma
mesh_terms: D000328:Adult; D004724:Endoscopy; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D009455:Neurofibroma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D010386:Pelvic Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D012187:Retroperitoneal Space / Q000473:pathology; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed