Endoscopic resection of a giant colonic lipoma with endoloop-assisted unroofing technique: A case report

RATIONALE: Colonic lipomas are uncommon benign submucosal adipose tumorsthat are usually asymptomatic. Large lipomas can cause symptoms require treatment in principle. We report 1 case of giant colonic lipoma removed with endoloop-assisted unroofing technique instead of conventional surgical bowel resection. PATIENT CONCERNS: A 62-year-old female patient presented with intermittent abdominal discomfort for 1 month. DIAGNOSIS: The patient was diagnosed as having a giant colonic lipoma. INTERVENTION: Endoscopic resection with endoloop-assisted unroofing technique was performed. On the 22nd day after resection, intestinal obstruction occurred by shedding mass was found; the symptoms of this patient disappeared soon after removal of the mass by endoscopy. OUTCOMES: A follow-up colonoscopy 6 months later showed a scarred mucosa at the ligation site and no residual lipoma was observed. LESSONS: Endoscopic resection with endoloop-assisted unroofing technique remains a viable option for giant lipomas; however, postoperative intestinal obstruction caused by shedding mass should be noted.