CT and MRI features most consistent of ruptured appendiceal mucocele of malignant origin with pseudomyxoma peritonei.

The patient went to have a right hemicolectomy, omentectomy, extended colpohysterectomy with intraoperative chemotherapy. The histopathological examination revealed mucinous adenocarcinoma of the appendix with pseudomyxoma peritonei.

Additional contributors: ZE. Boudiaf, MD,  S. Zine, MD.