Giant splenic artery aneurysms: case report and review of the literature.

Although splenic artery aneurysms (SAAs) are the most common visceral aneurysms, giant SAAs >10 cm in diameter have rarely been reported. We present the case of a 67-year-old asymptomatic man who was diagnosed with a 15-cm SAA in the absence of a clear etiologic factor. The patient underwent open surgical repair. A medial visceral rotation was performed to gain good vascular control and subsequently the aneurysm was ligated from within. A systematic review was carried out, allowing us to analyze 12 cases of giant SAAs >10 cm published to date. The difference in terms of demographics, clinical presentation, and arterial location between the giant SAA group and usual SAAs may indicate a different underlying physiopathology that remains unclear at this time.