Lipomatous Tumors of the Stomach: CT Findings and Differential Diagnosis

Abstract

This article reviews the computed tomography imaging features of a variety of gastric tumors containing fatty tissue. Lipoma, angiolipoma, liposarcoma, and teratoma are described. Differential diagnosis includes primary and reactive lipomatosis, carcinoma engulfing the perivisceral fat thus mimicking differentiated liposarcoma, and mesenchymal gastric and peritoneal neoplasms.

Submucosal resection of giant gastric lipoma

“…Although barium studies of the upper GI tract can detect submucosal lesions and their changes in shape with peristalsis, the correct differentiation of lipoma from other pathological processes can only be based on the deformation of the lesion during targeted compression. Modern CT permits accurate diagnosis based on characteristic findings of a well-circumscribed, submucosal mass with a regular shape, no infiltrative growth, and uniform fat density (À30 to À150 HU) [2]. Endoscopy with ultrasound compliments the above studies by identifying all layers of the gastric wall and facilitating biopsy of submucosal lesions.…”

Rectal angiolipoma diagnosed after surgical resection: A case report

“…Only 15 cases of angiolipoma occurring in the gastrointestinal tract were found in a MEDLINE search. These angiolipomas were located in the esophagus in one case [4] , the stomach in 4 cases [5][6][7][8] , the small intestine in 5 cases [9][10][11][12][13] and the colon in 5 cases [14][15][16][17][18] . The search revealed no reported cases of rectal angiolipoma.…”

Jejunal Intussusception of a Gastric Lipoma: A Review of Literature

“…Abdominal ultrasound shows multiple, target-like, concentric rings associated with an abdominal, echogenic mass and echolucent rings representing the mucosal covering of the intussuscepted segment of bowel containing the lipoma. Computed tomography with oral contrast reveals a well-circumscribed, submucosal lesion with uniform fat attenuation and occasionally, a fibrous capsule, a specific feature of lipomas [2, 10, 11]. The treatment of choice is surgical removal of any symptomatic lesion, together with a narrow margin of adjacent gastric tissue.…”