A ruptured omental aneurysm, a rare cause of intraabdominal bleeding.

Of all splanchnic artery aneurysms, the omental artery aneurysm is the most uncommon. In the published literature, there is no report of an incidental diagnosis, and all were discovered only after rupture. Until now, this is only the sixth case of a ruptured omental aneurysm published, and the first case with a concomitant nonruptured omental aneurysm.