Superior mesenteric artery aneurysm
Superior mesenteric artery (SMA) aneurysms are the third most common type of visceral artery aneurysm, accounting for ~5% of visceral artery aneurysms.
SMA aneurysms are most commonly detected incidentally on imaging for other indications, however, ~45% (range 38-50%) present post rupture 1,3.
Causes include 1,2:
- inflammation, e.g. vasculitis, pancreatitis
- collagen vascular disorder
- 1. Nevil Ghodasara, Robert Liddell, Elliot K. Fishman, Pamela T. Johnson. High-Value Multidetector CT Angiography of the Superior Mesenteric Artery: What Emergency Medicine Physicians and Interventional Radiologists Need to Know. (2019) RadioGraphics. 39 (2): 559-577. doi:10.1148/rg.2019180131 - Pubmed
- 2. Lorelli DR, Cambria RA, Seabrook GR, Towne JB. Diagnosis and management of aneurysms involving the superior mesenteric artery and its branches--a report of four cases. (2003) Vascular and endovascular surgery. 37 (1): 59-66. doi:10.1177/153857440303700108 - Pubmed
- 3. Stone WM, Abbas M, Cherry KJ, Fowl RJ, Gloviczki P. Superior mesenteric artery aneurysms: is presence an indication for intervention?. (2002) Journal of vascular surgery. 36 (2): 234-7; discussion 237. Pubmed