[Anterior urethral diverticular stones and retrocaval ureter in male: a case report and review of literature in Japan].
A case of diverticular stones in the male anterior urethra with retrocaval ureter is reported. A 26-year-old man visited our hospital for examination, who had experienced spontaneous stone discharge a few days earlier. Computed tomographic (CT) scan with ureteral catheterization and urethrography revealed a retrocaval ureter and urethral diverticular stones. Resection of urethral diverticulum with 7 stones and right ureteroplasty were performed. The urethrography and drip infusion pyelography (DIP) 9 months after operation showed no abnormal findings. The largest stone was 28 x 22 x 20 mm in size and 20 g in weight. The main components were ammonium dihydrogen-urate (70%), carbonate apatite and struvite. Histological feature of the epithelium of the urethral diverticulum indicated normal skin with hairs. Pathological diagnosis was para-urethral dermoid cyst. Our case is the 67th case of the male urethral diverticular stones and the first case of those with retrocaval ureter in Japan.
Nonomura
M
M
Department of Urology, Kobe City General Hospital.
Kanaoka
T
T
Soeda
A
A
Matsuo
M
M
D000328:Adult; D003456:Cryptorchidism / Q000150:complications; D003884:Dermoid Cyst / Q000150:complications; D004240:Diverticulum / Q000150:complications* / Q000151:congenital; D006801:Humans; D008297:Male; D014513:Ureter / Q000002:abnormalities*; D014522:Urethral Diseases / Q000150:complications* / Q000151:congenital; D014523:Urethral Neoplasms / Q000150:complications; D014545:Urinary Calculi / Q000150:complications*