A case of appendiceal adenoma with cecal intussusceptions

Abstract

An 85-year-old man was admitted to our hospital for investigation of a positive stool occult blood test. Colonoscopy showed a large pedunculated polyp originating from lower end of the cecum. A diagnosis of large appendiceal adenoma with cecal intussusception was made preoperatively. Laparoscopic ileocecal resection with dissection of regional lymph nodes was performed. Histopathological examination of resected specimens showed a tubular adenoma in the appendix, of low to high grade. Appendiceal adenoma with cecal intussusception is extremely rare, but it should be considered in cases with polypoid lesions involving the cecum.