Mucocele of the appendix secondary to endometriosis - Report of two cases,one with localized pseudomyxoma peritonei

This report documents 2 cases of obstructive mucocele of the appendix secon dary to endometriosis of the appendix. In 1 case, the tip of the mucocele w as ruptured and associated with localized pseudomyxoma peritonei. Mucoceles of the appendix usually are associated with hyperplastic or neoplastic muc osal proliferation; obstruction, particularly that due to endometriosis, is an infrequent cause. Occurrence of localized pseudomyxoma peritonei associ ated with appendiceal endometriosis and mucocele has not been reported prev iously.