CASE REPORT | INFLAMMATORY BOWEL DISEASE Early Diagnosis of a Small Adenocarcinoma in a Rectovaginal Fistula Related to Crohn’s Disease

While adenocarcinomas have occasionally been reported in perianal fistulae, malignant changes occurring in rectovaginal fistulae are rare, with only a handful of reported cases. We report a 73-year-old woman with Crohn’s disease who was diagnosed at an early stage with adenocarcinoma in a rectovaginal fistula. This rare disease poses many diagnostic challenges