Abstract
A 28 year-old female admitted to our hospital on January 13, 1992 with chief com-plaints of bloody stool and right lower quadrant pain. On admission, a goose-egg sized tumor was palpated in the right lower quadrant with slight tenderness. Next day the tumor moved to the right upper quadrant. Ultrasonography showed a low echoic mass with multiple concentric ring sign. Barium enema revealed coil spring appearance in the transverse colon. After reduction by hand, a regular and round defect was found in the fundus of the cecum. The dianosis of intussusception caused by a ileocecal tumor was made. Colonoscopic examination revealed a polypoid lesion with erosion and reddness in the cecum. Computed tomography and magnetic resonance image demonstrated a cystic lesion in the cecum. Clinically, a mucinous cystadenoma of the appendix was diagnosed, and the appendectomy was performed. Macroscopicaly, the tumor was remarkably swollen appendix containing gelatinous substance and mucin. It was pathologically diagnosed as mucinous cystadenoma of the appendix.
