Clinical Appearance and Surgical Treatment of Colonic Lipomas: Shuang-Ho Hospital Experience

Background. Colonic lipoma is an uncommon benign non-epithelial neoplasm, which may mimic colonic malignancy. With limited data on this pathology, we evaluated the clinical appearance and surgical management of colonic lipoma. Methods. Fourteen patients with colonic lipomas from July 2008 to December 2020 were reviewed. Patients were divided into two groups, elective surgery group and emergency surgery group, and analyzed these data. Results. The mean age of all patient was 64.7 years. Symptoms were noted in 11 patients and 3 patients were asymptomatic. Half of patients had colonic lipoma located in the cecum, four in the transverse colon, one in the descending colon, and two in the sigmoid colon. Nine patients underwent elective surgery and five underwent emergency surgery. The tumor size is larger in the emergency group than in the elective group (5 ± 1.6 cm vs. 3.5 ± 0.9 cm, p ＜ 0.01), and colonic intussusception was present in all emergency group patients (p ＜ 0.01). Univariate and multivariate analysis showed that tumor size larger than 5 cm and intussusception are risk factors for colonic lipoma causing emergency surgery. Conclusions. Tumor size larger than 5 cm and bowel intussusception are risk factors for colonic lipoma causing emergency surgery.