Colo-salpingeal fistula: A rare case report.

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.