RT Journal Article SR Electronic T1 An ascending aortic mass infected with Citrobacter koseri in a young woman JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP clinmed.2019-0290 DO 10.7861/clinmed.2019-0290 A1 Deacon Lee A1 Rebecca Godfrey A1 Jonathan Hyde A1 Rachael James YR 2019 UL http://www.rcpjournals.org/content/early/2019/11/08/clinmed.2019-0290.abstract AB BackgroundIsolated aortic infection is rare and is typically associated with an underlying aortic aneurysm or a prosthetic aortic graft.Case summaryA 38-year-old woman was admitted with symptoms of left upper limb ischaemia and had imaging findings suggestive of thrombus extending from the ascending aorta into the subclavian and brachial arteries. She underwent evacuation of the aortic masses and replacement of the ascending aorta. Citrobacter koseri was isolated from the excised tissue and the patient received 6 weeks of appropriate antibiotic therapy.DiscussionThis is an unusual case of acute upper limb ischaemia due to a mass infected with Citrobacter koseri in the ascending aorta without heart valve involvement.