Key clinical message
Celiac artery aneurysm is a rare and typically asymptomatic lesion that is defined as dilation of the celiac artery trunk by 1.5 times its normal diameter. Most are idiopathic and occur in the fifth decade of life. Imaging plays an important role in the diagnosis and identification of complications, such as expansion and thrombus formation. 20% of cases are also associated with additional visceral aneurysms, which imaging will help to localize. We present the case of an elderly male patient in whom we performed post-contrast computed tomography for a liver mass, which proved to be focal nodular hyperplasia, and diagnosed an incidental and isolated celiac artery aneurysm. We show the imaging findings and briefly review the literature. This case is important as it highlights how an imaging modality performed for an unrelated condition can diagnose a rare visceral artery aneurysm.
Key words: celiac artery aneurysm; computed tomography; splanchnic artery aneurysms