Appendiceal Mucocele : Benign and Malignant = القيلة المخاطية الزائدية : الحميدة و الخبيثة

Abstract

Appendicular mucocele is a rare lesion. It is a descriptive term denoting an obstructive dilatation of the appendicular lumen by mucinous secretions. Mucinous cystadenoma and cystadenocarcinoma account for 60-70% of all mucoceles. Less common causes are retention cyst, mucosal hyperplasia, carcinoid, appendicolith, endometriosis, adhesions and volvulus. The clinical presentation is usually non-specific with 50% of cases being an incidental finding at surgery. We present two rare cases of mucinous cystadenoma and cystadenocarcinoma respectively, the 1st case, a female patient was presented by right lower quadrant pain and right iliac fossa tenderness, the diagnosis was made by computed tomography (CT) scanning, she underwent right hemicolectomy and histopathology result was mucinous cystadenoma. The diagnosis of the 2nd case, a