Aneurysm of the splenic artery.

Splenic artery aneurysms, once considered rare entities are now being reported with increasing frequency. Due to a high incidence of fatal rupture, they are considered dangerous. Rupture is often the first and only symptom. With an increased index of suspicion and early aggressive treatment of asymptomatic splenic artery aneurysms, mortality has drastically decreased. We present a case of an unusually large asymptomatic aneurysm which was treated surgically, and discuss incidence, pathophysiology, clinical presentation, evaluation and treatment.