Perforation of a malignant ovarian tumor into the recto‐sigmoid colon

Ovarian cancer often presents at an advanced stage, but tends to be an intra‐peritoneal disease that respects peritoneal planes. Thus, colo‐rectal perforation of the tumor is an extremely rare presentation. The surgical treatment of malignant colo‐ovarian fistula should include complete cyto‐reduction at the same time as the treatment of the fistula. However, prognosis remains poor, because of the advanced stage of neoplasia. We report the case of a patient with an ovarian malignant tumor perforating into the recto‐sigmoid colon. CT scan was the cornerstone of the radiological diagnosis. We managed to perform a complete cyto‐reduction, including an en‐bloc resection of the uterus, the mass, adnexa and recto‐sigmoid with removal of the associated pelvic abscess.