title: [A case of stone formation in the Mainz pouch using appendix as the efferent limb: a case report].
abstract: A large calculus (6.0 x 4.5 x 7.0 cm sized) in the continent urinary pouch was detected incidentally by computed tomography in a 7-year-old man with a gall bladder stone. He underwent a total cystectomy and Mainz pouch formation using appendix as the efferent limb for bladder cancer 7 years ago. Urine culture showed Proteus mirabilis and Escherichia coli, and urine pH was 8.5. The stone was removed successfully through a pouchotomy and composed mainly of struvite. The stone analysis was MAP; 88% and CaCO3; 12%. Convalescence was uneventful. This is the first case of in Mainz pouch using appendix as the efferent limb.
authors.affiliation: Department of Urology, Matsumoto National Hospital.
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Kurizaki
authors.forename: Masayo
authors.initials: M
authors.lastname: Fujiwara
authors.forename: Masaki
authors.initials: M
authors.lastname: Nakazawa
authors.forename: Takehisa
authors.initials: T
authors.lastname: Yoneyama
mesh_terms: D000368:Aged; D001065:Appendix / Q000601:surgery*; D015653:Cystectomy; D006801:Humans; D007082:Ileum / Q000601:surgery; D008297:Male; D011183:Postoperative Complications; D001749:Urinary Bladder Neoplasms / Q000601:surgery; D014545:Urinary Calculi / Q000209:etiology* / Q000601:surgery; D016476:Urinary Reservoirs, Continent