title: Computed tomographic appearance of urachal carcinoma associated with urachal diverticulum misdiagnosed by cystoscopy.
abstract: Urachal carcinoma associated with the urachal diverticulum is rare. We present a surgical case of this condition that was initially diagnosed as bladder urothelial carcinoma by cystoscopy, but was then correctly diagnosed by computed tomography (CT). Whereas the CT appearance mimicked that of bladder cancer, accurate localization of the lesion and identification of the median umbilical ligament clarified diagnosis.
authors.affiliation: Departments of Radiology, Tokyo Women's Medical University, Medical Center East, 2-1-10 Nishiogu, Arakawa-ku, Tokyo, 116-8567, Japan. machira@dnh.twmu.ac.jp
authors.forename: Haruhiko
authors.initials: H
authors.lastname: Machida
authors.forename: Eiko
authors.initials: E
authors.lastname: Ueno
authors.forename: Hayakazu
authors.initials: H
authors.lastname: Nakazawa
authors.forename: Mikihiko
authors.initials: M
authors.lastname: Fujimura
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kihara
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D000368:Aged; D003287:Contrast Media; D003558:Cystoscopy; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D004240:Diverticulum / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed; D014497:Urachus / Q000000981:diagnostic imaging*; D001745:Urinary Bladder Diseases / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D001749:Urinary Bladder Neoplasms / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery
chemical_list: D003287:Contrast Media