A case report and literature review of rectal lipoma

Rationale:Colonic lipomas are uncommon benign submucosal adipose tumors that are usually asymptomatic. In principle, large lipomas can cause symptoms that require further treatment. Here, we report a case of prolapsed giant rectal lipoma and transanal mass resection.Patient concerns:A 65-year-old male developed rectal mass prolapse with bloody stool for 1 day.Diagnoses:The pathological findings were rectal lipoma.Intervention:After resection of the anal tumor, the patient postoperative symptoms quickly disappeared.Outcomes:No recurrence of the condition was observed after 6 months of follow-up after surgery.Lessons:It is safe and feasible for us to perform transanal mass resection for giant rectal lipomas that protrude outside the anus.