title: Asymptomatic chronic urachal abscess mimicking a bladder tumor.
abstract: A 72-year-old man was admitted with a lower abdominal mass, occasionally detected during a previous laparoscopy. The cystoscopy revealed a bulging mass 5 cm in diameter at the vesical dome. The computed tomography (CT) scan showed an extravescical extension in close relationship with the posterior abdominal wall. Two consecutive endoscopic biopsies and a CT-guided percutaneous biopsy were not helpful. At surgery, a mass about 10 cm in diameter was found at the vesical dome and removed "en-block". The microscopic examination showed a chronic urachal abscess. To our knowledge, this is the second case of asymptomatic urachal abcess mimicking a bladder neoplasm. The reasons of a surgical approach are discussed.
authors.affiliation: Division of Urology, Umberto Parini Hospital, Aosta, Italy. emanuele.baldassarre@alice.it
authors.forename: Emanuele
authors.initials: E
authors.lastname: Baldassarre
authors.forename: Beatrice
authors.initials: B
authors.lastname: Lillaz
authors.forename: Ivano
authors.initials: I
authors.lastname: Vittoria
authors.forename: Paolo
authors.initials: P
authors.lastname: Pierini
mesh_terms: D000038:Abscess / Q000175:diagnosis* / Q000601:surgery*; D000368:Aged; D001706:Biopsy; D002908:Chronic Disease; D003558:Cystoscopy; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014497:Urachus / Q000601:surgery*; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis / Q000601:surgery