Gastric lipomas are rare, accounting for <5% of gastrointestinal lipomas and <1% of all gastric neoplasms 2.
Gastric lipomas are typically sessile in morphology, solitary (75%) and most frequently located in the gastric antrum. They tend to be submucosal rather than subserosal. Gastric ulceration is common.
Gastric lipomas are composed of mature adipose cells surrounded by a fibrous capsule.
Features are non-specific on upper gastrointestinal contrast studies with filling defects and a central bulls-eye, reflecting ulceration common 2,3.
Gastric lipomas present as well-defined, homogenous fat-density lesions (-70 to -120 is diagnostic) 2.
- on fluoroscopic studies, GIST should always be considered 4
- 1. Kang HC, Menias CO, Gaballah AH et-al. Beyond the GIST: mesenchymal tumors of the stomach. Radiographics. 2013;33 (6): 1673-90. doi:10.1148/rg.336135507 - Free text at pubmed - Pubmed citation
- 2. Thompson WM, Kende AI, Levy AD. Imaging characteristics of gastric lipomas in 16 adult and pediatric patients. AJR Am J Roentgenol. 2003;181 (4): 981-5. doi:10.2214/ajr.181.4.1810981 - Pubmed citation
- 3. Krasniqi AS, Hoxha FT, Bicaj BX et-al. Symptomatic subserosal gastric lipoma successfully treated with enucleation. World J. Gastroenterol. 2009;14 (38): 5930-2. Free text at pubmed - Pubmed citation
- 4. Mandell J. Core Radiology. Cambridge University Press. (2013) ISBN:1107679680. Read it at Google Books - Find it at Amazon
- 5. Gossios, K., and E. Tsianos. "CT evaluation of benign gastric lesions." ANNALS OF GASTROENTEROLOGY. 17 (2004): 31-36.