Transanal Resection of a Prolapsed Rectal Lipoma: A Report of a Rare Case.

Abstract

Lipoma is a benign tumor that arises from mesenchymal cells and is considered relatively rare. Although lipomas can develop anywhere in the digestive tract, they are seldom found within the intestinal tract. Typically asymptomatic, colonic lipomas usually do not require treatment unless they result in symptoms that warrant surgical intervention. In this case, a 68-year-old male patient presented to the colorectal clinic with complaints of chronic constipation lasting five years, along with a bulging protrusion through the anus that could be reduced by the patient's finger. He reported no history of abdominal pain, change in bowel habits, rectal bleeding, melena, weight loss, fever, or night sweats. During colonoscopy, large subepithelial lesions, measuring greater than 2 cm, were observed proximal to the anal verge. This case report highlights the significance of accurately diagnosing colonic lipomas to prevent potential misdiagnoses as malignancies or rectal prolapses. Additionally, we advocate for treatment strategies tailored to several factors, including the lipoma's size, location, and any associated symptoms.