title: Rectal gastrointestinal stromal tumor with metastasis to the penis: Case report and review of literature.
abstract: We report the case of a 51-year-old gentleman with previously diagnosed gastrointestinal stromal tumor (GIST) of the rectum with metastasis to the penis. The patient underwent abdominoperineal resection of the primary tumor with negative margins and completed a three-year course of imatinib mesylate (Gleevec). Forty months after resection of his rectal tumor, the patient presented to his urologist with worsening testicular pain, mild lower urinary tract obstructive symptoms, and nocturia. A pelvic MRI revealed the presence of an ill-defined mass in the right perineum extending from the base of the penis to the penoscrotal junction. Biopsy of this mass was consistent with metastatic GIST. To our knowledge, this is the first report of metastatic GIST to the penis.
authors.affiliation: University of Arkansas for Medical Sciences, 4301 West Markham St., Little Rock, AR 72205, United States. Electronic address: jcarlson@uams.edu.
authors.forename: Jacob
authors.initials: J
authors.lastname: Carlson
authors.affiliation: University of Arkansas for Medical Sciences, 4301 West Markham St., Little Rock, AR 72205, United States. Electronic address: WMAlobuia@uams.edu.
authors.forename: Wilson
authors.initials: W
authors.lastname: Alobuia
authors.affiliation: University of Arkansas for Medical Sciences, 4301 West Markham St., Little Rock, AR 72205, United States. Electronic address: JSMizell@uams.edu.
authors.forename: Jason
authors.initials: J
authors.lastname: Mizell
keywords: Gastrointestinal stromal tumor (GIST); Metastasis; Penile; Rectal