A 66-year-old male was referred for the treatment of a polyp extending into a diverticulum. Endoscopic band ligation (EBL) was used to resolve the diverticulum. The banded diverticulum resolved and scar formation was observed 2 months after EBL. Residual small polypoid lesions were resected using endoscopic mucosal resection (EMR), and no complications occurred after treatment.