Abstract
Infected aneurysms in the coronary artery are rare. We herein report a case of a infected aneurysm due to bacteremia caused by a diabetic foot ulcer. A 75-year-old male with type 2 diabetes mellitus and stage 5 chronic kidney disease was admitted to our hospital with an intractable ulcer on his right foot. Cultures of his blood and the wound yielded Methicillin-resistant Staphylococcus aureus (MRSA). On the second day of admission, he had a high fever and developed shortness of breath. His foot ulcer showed improvement, and the presence of other infection foci, including endocarditis, was excluded. Computerized tomography revealed a 60 mm coronary aneurysm in the proximal right coronary artery. Because of the MRSA infection and his poor general condition, surgical excision was not indicated. His inflammatory state persisted despite the treatment with adapted antibiotics, and he died of sepsis on the 30th day. In the pathological study, the aneurysm was diagnosed as infected aneurysm caused by bacteremia.
