Computed tomography and ultrasound diagnosis of mycotic aneurysm of the abdominal aorta due to Salmonella.

The case of a 56 year old diabetic Chinese male, with a Salmonella bovismorbificans (serogroup C) mycotic aneurysm of the abdominal aorta is presented. The lesion was seen by computed tomography and ultrasound and the patient was successfully treated by primary resection, debridement and grafting. Computed tomography criteria for the diagnosis of mycotic aneurysms of the abdominal aorta are discussed. Ultrasound identified the aortic aneurysm correctly but was unable to demonstrate the associated psoas abscess in this case.