Recto-sigmoid lipoma: a case report and review of the literature

Abstract

Lipomas are a growth of fat cells in a fibrous capsule. They are most common in noncancerous tissues. Lipoma of rectum is uncommon and the most common sit of its origin is the perinanal region. Rarely they could cause rectal bleeding. In this study, we have reported a 53-yrs old man who had been referred to the hospital with symptoms of abdominal pain, rectal bleeding and the problem in bowel movement. Rectal prolapsed with solitary rectal were observed during the clinical observation. Colonoscopy, CT-Scan and MRI were performed for the patient and the results showed a mass suggestive to lipoma which was located in recto/sigmoid region. He underwent the surgery. Intra operative findings showed several soft masses in rectum and a large mass with dimension of 10 cm × 10 cm in sigmoid. Low anterior resection was performed for him and pathology diagnosis was lipoma.

"Asymptomatic Submucosal Lipoma of the Anal Canal: A Report of an Incidental Colonoscopic Finding in an Elderly Patient with Colonic Diverticuli"

“…The rarity of this case lies in the fact that it is a deep-seated lipoma occurring in the anal canal. The most distal GIT lipomas reported in the literature are those of the rectum and these presented as polypoid submucosal masses protruding through the anal canal or casuing rectal bleeding [11,12]. Beyond the rectoanal canal, the perianal region, lipomas are also rare with a report of a perianal lipoma occurring years after surgery for a perianal abdscess [13].…”

Rectal Lipoma in an Elderly Male: A Case Report

“…Histopathological examination of lipomas reveals adipose tissue, which is surrounded by a fibrotic capsule [6]. Colonic lipomas are often asymptomatic [2,7]. However, if their size exceeds 2 cm, they may cause abdominal pain, rectal bleeding, alterations in bowel habits and intussusception [2].…”