title: Urachal adenocarcinoma: a rare case report.
abstract: Urachal carcinoma is a rare and aggressive form of bladder cancer involving the urachus, a fibrous remnant of the allantois that extends from the bladder to the umbilicus. We report this case of a 49-year-old women with primary urachal adenocarcinoma treated with partial cystectomy who relapsed 5 years after surgery with lung metastases. This patient with unremarkable medical history presented with abdominal discomfort and a palpable pelvic mass. Follow-up imaging reveals a large mass on the dome of the bladder extending from the urachus. Subsequent ultrasound-guided biopsy result was suggestive of an urachal mucinous adenocarcinoma. The patient was treated surgically with a partial cystectomy.
authors.affiliation: Department of Radiology, Foothills Medical Center, 1403-29 Street N.W., Calgary, AB T2N 2T9, Canada.
authors.forename: Bo
authors.initials: B
authors.lastname: Bao
authors.affiliation: Department of Radiology, Foothills Medical Center, 1403-29 Street N.W., Calgary, AB T2N 2T9, Canada.
authors.forename: Muhammed
authors.initials: M
authors.lastname: Hatem
authors.affiliation: Department of Radiology, Foothills Medical Center, 1403-29 Street N.W., Calgary, AB T2N 2T9, Canada.
authors.forename: Jason K
authors.initials: JK
authors.lastname: Wong
keywords: Adenocarcinoma; Bladder; Lung metastasis; Urachus