Spontaneous Urethro sigmoid fistula: A rare case

Urethro sigmoid fistula is an uncommon entity, which is diagnosed often by fecaluria . It is mostly iatrogenic: prostate surgery or rectum surgery, radio induced (radiotherapy) [1]. In our case, our patient is 73 years old, he came to the emergencies for a left renal colic, and some urinary symptoms especially the passage of urines through the anus. the Abdominal CT (excretory phase) showed a left ureteral pyelocalicial dilation above an ureteropelvic stone which size is 6 mm and a fistula between the urethra and the sigmoid. The treatment was a supra pubic cystostomy and a colostomy for 3 Months. the cystography of control showed the absence of communication between the prostatic urethra and the colon sigmoideum.