Uterocolon Fistula Formation in 50 Year Old Patient with History of 16 Years Intrauterine Device Use: A Case Report.

Introduction: Uterocolon fistula is one of the complications of intrauterine device (IUD) insertion. Not only may IUD materials cause perforation, but some other risk factors may contribute to its development including uterine abnormalities, thus IUD is contraindicated in patients with anatomical anomaly.

Case: P3A1 woman, 50 years old with a history of IUD use for 16 years presented with complaints of fecal discharge from the vagina 8 months ago which worsened after IUD extraction. Physical examination revealed no abdominal tenderness. Speculum examination found feces in the cervical canal. CT scan examination showed multiple uterocolon fistulas and uterine didelphys. Diagnostic laparoscopy and hysteroscopy were carried out and found a recto-uterine fistula, then the patient was scheduled for colostomy and reanastomosis with the stapler method.

Conclusion: Diagnosis was very difficult to establish despite proper imaging modalities. The use of direct visual diagnostics (hysteroscopy and laparoscopy) can be a good alternative for the diagnosis of uterocolon fistula. To the best of our knowledge, this is the first case report on recto-uterine fistula in a patient with long-term use of IUD and uterine didelphys.