Abstract
We report an 88-year-old woman with primary appendical intussusception. Contrast enema and colonoscopy showed a protuberant tumor of the cecum. Abdominal computed tomography and ultrasound imaging showed a cystic lesion in this tumor. At operation, right colectomy was done including a dissection of regional lymph nodes. The tumor originated around the orifice of the appendix and the appendix invaginated into the cecum. Pathological findings subsequently confirmed a cecal carcinoma, While appendical mucosa was only inflammatory change. We consider that the appendix was drawn into the cecum by cecal carcinoma.
