# Colo-salpingeal fistula: A rare case report

## TL;DR

A rare case of a salpingo-enteric fistula in an asymptomatic woman was found to be a hidden cause of infertility.

## Contribution

Highlights the importance of considering asymptomatic salpingo-enteric fistulas in infertility cases.

## Key findings

- Contrast leakage into the colon during hysterosalpingography confirmed the fistula.
- No history of pelvic inflammatory disease or surgery was present in the patient.
- The case suggests that such fistulas may be an overlooked cause of infertility.

## Abstract

Salpingo-enteric fistula is a rare condition that can cause infertility. It occurs when there is an abnormal connection between the fallopian tube and the intestine. Accurate diagnosis can be made using hysterosalpingography.The case of a 40-year-old asymptomatic woman diagnosed with primary infertility and scheduled for a hysterosalpingogram as part of the routine workup in the infertility clinic. There was no history of pelvic inflammatory disease or previous surgical intervention. The result showed presence of bilateral hydrosalpinx without peritoneal spillage. Contrast leaked into the adjacent descending colon and sigmoid loop on the left side. Asymptomatic salpingo-enteric fistulas may be a hidden cause of infertility, and their association can only be confirmed if all other factors of infertility have been convincingly ruled out.