Application of an appendoscope in chronic appendicitis

A 73-year-old woman presented with a 10-year history of abdominal pain. Computed tomography showed swollen soft tissue in the ileocecal area. Colonoscopy showed a submucosal bulge in the ileocecal area (suspected lipoma) ([Fig. 1]). After completing relevant examinations, colonoscopy was repeated ([Video 1]) and showed a 2 cm × 3 cm submucosal bulge, with smooth mucosa at the ileocecal junction and pus at the appendiceal orifice ([Fig. 2])....