title: Serous adenocarcinoma of the uterus metastatic to the urinary bladder mimicking primary bladder neoplasia. A report of a case.
abstract: A 72-year-old woman with a history of transitional cell carcinoma of the urinary bladder was found to have a vesical neoplasm at cystoscopy. Microscopic examination of a biopsy specimen showed papillary adenocarcinoma. A subsequent endometrial biopsy, performed because of vaginal spotting, disclosed a serous papillary adenocarcinoma. A hysterectomy was performed. Pathologic examination showed that the tumor was deeply invasive of the myometrium. The uterine and bladder tumors were similar histologically. This case suggests that when examining a pure adenocarcinoma of the bladder, the pathologist should consider the possibility that it represents metastatic disease even in the absence of a known tumor elsewhere.
authors.affiliation: Department of Pathology, Harvard Medical School, Boston, MA.
authors.forename: R H
authors.initials: RH
authors.lastname: Young
authors.forename: W H
authors.initials: WH
authors.lastname: Johnston
mesh_terms: D000368:Aged; D001706:Biopsy; D003536:Cystadenocarcinoma / Q000175:diagnosis / Q000556:secondary*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D001743:Urinary Bladder / Q000473:pathology; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis / Q000556:secondary*; D014594:Uterine Neoplasms / Q000175:diagnosis / Q000473:pathology*