Spontaneous Splenic Artery Pseudoaneurysm Rupture Causing Hemorrhagic Shock.

Splenic artery pseudoaneurysm (SAP) is an uncommon etiology of acute abdominal pain, requiring a high degree of clinical suspicion to diagnose in a timely manner. There are currently no reports of spontaneous SAP ruptures in the emergency medicine literature. We report a case of a man who presented with acute abdominal pain secondary to an SAP. A computed tomography angiography scan of the abdomen revealed a ruptured SAP with hemoperitoneum. He successfully underwent emergency laparotomy and surgical ligation of his SAP with splenectomy. SAP rupture remains an under-recognized etiology of abdominal pain, even though it is the most frequent type of visceral pseudoaneurysm. Our case herein reinforces the importance of a broad list of differential diagnoses in the patient with acute abdominal pain, as well as the importance of the emergency physician in identifying an emergent condition and then directing the initial stabilization, resuscitation, and management.