Spontaneous drainage of an appendiceal abscess into an orthotopic neobladder

Orthotopic neobladder creation using a variety of intestinal segments has become a standard method of urinary tract reconstruction after radical cystectomy. Complications of this procedure have been reported in up to 30% of patients.(1) Late complications include small bowel obstruction, ureteroenteric stricture and stone formation. We describe a rare late complication of spontaneous drainage of an appendiceal abscess into a sigmoid neobladder.