title: Extraprostatic spindle cell stromal tumor of the prostate: case report.
abstract: Several benign and malignant nonepithelial and stromal-like lesions arise in the prostate. Because such lesions are rare, their recognition is essential, because treatment and prognosis depend on an adequate pathohistologic classification. We report a case of an 83-year-old man with a stromal tumor of the prostate of uncertain malignant potential (STUMP). He presented with urinary retention and rectal constipation. On bimanual examination, a rectally and suprapubically palpable mass was found. Imaging studies revealed a 12 x 8 cm pararectal inhomogeneous mass of uncertain origin compressing rectum and urethra. The tumor was resected by a retropubic approach and examined immunohistochemically.
authors.affiliation: Department of Urology, Johannes Gutenberg-University, Medical School, Mainz, Germany. frederik.roos@gmx.de
authors.forename: Frederik C
authors.initials: FC
authors.lastname: Roos
authors.forename: Steffanie
authors.initials: S
authors.lastname: Sommer
authors.forename: Christian
authors.initials: C
authors.lastname: Hampel
authors.forename: Sebastian W
authors.initials: SW
authors.lastname: Melchior
authors.forename: Joachim W
authors.initials: JW
authors.lastname: Thüroff
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis*; D000369:Aged, 80 and over; D002277:Carcinoma / Q000175:diagnosis*; D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms