Abstract
A case of mycotic aneurysm in the gastroduodenal artery associated with infectious endocarditis (IE) penetrating into the residual stomach is reported. A 50-year-old woman was transferred to our hospital because of sudden onset of hematemesis and bloody stool. She had had partial gastrectomy due to duodenal ulcer 6 years previously and aortic prosthetic valve replacement due to infectious endocarditis eight months previously. Emergency laparotomy was performed. Aneurysm of the gastroduodenal artery penetraing into the lumen of the residual stomach was found. The aneurysm had not been detected in the CT scan 8 months earlier. It was surmised that it was related to IE and had developed over the last 8 months. Aneurysmectomy was performed. The postoperative course was uneventful and she was discharged on the 22nd postoperative day. Mycotic aneurysm associated with IE developing into the gastroduodenal artery and penetrating into the stomach is rare. It is possible that a mycotic aneurysm could develop in any artery of a patient with IE. We should thus carefully examine patients with IE in order to detect mycotic aneurysms using angiography and the contrast-enhanced CT scan.
