Intramural Hemorrhage of the Splenic Artery Aneurysm Mimicking Submucosal Tumor of the Stomach

Aneurysm of the visceral vessels are rare, however the mortality rate for such events are extremely high. The proper surgical intervention of this disease is important to achieve a positive outcome. The patient was reffered to our hospital complaining of severe epigastralgia gastrointestinal fiberscope showed an elevated lesion mimicking a submucosal tumor of the stomach. CT scan revealed impending rupture of splenic aneurysm severe collateral venous dilatation. We diagnosed it to be a large intramural hemorrhage of a splenic artery aneurysm. We performed the superselective microcoil embolization technique. The surgical intervention was successful without any complication. Although gastrofiberscopic examination showed a tumor-like lesion, we must be careful whether we perform a biopsy or not, and we must keep visceral aneurysm in our mind as differential diagnosis.