Coil embolization of an incidental, large splenic artery aneurysm in a patient found to have pituitary adenoma

Abstract

Splenic artery aneurysms are the most common type of visceral artery aneurysms, with presentation ranging from an incidental finding on cross sectional imaging to rupture. We report the case of an elderly female with dull epigastric pain who was found to have a large splenic artery aneurysm at risk of rupture necessitating emergent treatment, later found to have a pituitary adenoma with elevated growth hormone. This patient underwent coil embolization of the splenic artery aneurysm sac as well as the proximal and distal splenic artery, and at one year follow up was found to have a persistent thrombosed splenic artery aneurysm with notable shrinkage. This case contributes to the ongoing understanding that endovascular means of treating splenic artery aneurysms, even large ones such as the one presented, can have excellent short- and long-term results. Furthermore, it adds to the small body of literature demonstrating case reports of pituitary adenomas associated with non-intracranial artery aneurysms.