title: Malignant mesenchymoma arising from the prostate in Gardner's syndrome.
abstract: The first case of a primary malignant mesenchymoma arising from the prostate in Gardner's syndrome is reported. The neoplasm occurred in a 40-year-old man with a chief complaint of urinary retention. Biopsy findings were primary malignant mesenchymoma. Total cystectomy and lymphadenectomy were performed, but the patient died due to multiple metastases within 6 months. He had undergone a colectomy for polyposis coli 17 years earlier and had mandibular osteomas. This was the first case of malignant mesenchymoma arising from the prostate in Gardner's syndrome.
authors.affiliation: Department of Urology, Niigata Rosai Hospital, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Ohta
authors.forename: R
authors.initials: R
authors.lastname: Takaki
authors.forename: S
authors.initials: S
authors.lastname: Ishizawa
mesh_terms: D000008:Abdominal Neoplasms / Q000556:secondary*; D000328:Adult; D017809:Fatal Outcome; D005736:Gardner Syndrome / Q000150:complications* / Q000473:pathology; D006801:Humans; D008175:Lung Neoplasms / Q000556:secondary*; D008297:Male; D008637:Mesenchymoma / Q000556:secondary* / Q000601:surgery; D011471:Prostatic Neoplasms / Q000473:pathology* / Q000601:surgery