A Giant Superior Mesenteric Artery Aneurysm Mimicking an Abdominal Aortic Aneurysm

Abstract

Superior mesenteric artery aneurysms are a rare clinical finding but can present with a wide range of symptoms. They are associated with a high risk of rupture, as well as high morbidity and mortality. We present a case of a 38-year-old female who presented with acute abdominal pain and a pulsatile palpable mass in the right epigastric region without other signs or symptoms.

Embolization of Superior Mesenteric Artery Aneurysm with Celiac Trunk Artery Occlusion-A Case Report

“…This case describes a SMA aneurysm associate with a CTA sub oclusion and a branch from SMA filling the CTA. Historically, mycotic aneurysm have represented the majority of SMAA, but currently, the most frequent cause of aneurysms of the SMA is atherosclerosis [2]. Decades ago, 90% of all patients were symptomatic [6]; however, more recently, diagnosed SMAAs have been asymptomatic and discovered as incidental findings on abdominal imaging [2].…”

“…Historically, mycotic aneurysm have represented the majority of SMAA, but currently, the most frequent cause of aneurysms of the SMA is atherosclerosis [2]. Decades ago, 90% of all patients were symptomatic [6]; however, more recently, diagnosed SMAAs have been asymptomatic and discovered as incidental findings on abdominal imaging [2]. SMAA must be treated surgically or through endovascular approach, in the absence of complicating factors, due to the high risk of spontaneous rupture and thrombosis [7].…”

“…Visceral artery aneurysms (VAAs) are a rare entity in clinical practice, with a reported incidence ranging from 0.1% to 2% [1,2]. SMAA is the fourth most frequent of the visceral aneurysms, corresponding 3 to 5 % of the cases [3].…”