title: Mycotic inferior mesenteric artery aneurysm secondary to native valve endocarditis caused by coagulase-negative Staphylococcus.
abstract: Inferior mesenteric artery (IMA) aneurysms are the rarest of all visceral artery aneurysms, with most resulting from atherosclerotic disease. Mycotic IMA aneurysms are exceptionally uncommon and only 2 cases have been reported in the literature. Coagulase-negative staphylococcus (CNS) is often considered a contaminant; however, increasing reports of certain strains causing endocarditis are becoming more prevalent. We report a case of a mycotic IMA aneurysm, in the setting of native valve endocarditis caused by Staphylococcus simulans, a strain of CNS. To our knowledge, this is the third report of a mycotic IMA aneurysm, and the first account of this usually benign pathogen leading to aneurysmal degeneration in this location.
authors: Division of Vascular and Endovascular Surgery, UT Southwestern Medical Center, Dallas, TX. Electronic address: Melissa.kirkwood@utsouthwestern.edu.
authors: Melissa L
authors: ML
authors: Kirkwood
authors: Division of Vascular and Endovascular Surgery, UT Southwestern Medical Center, Dallas, TX.
authors: Martyn
authors: M
authors: Knowles
authors: Division of Vascular and Endovascular Surgery, UT Southwestern Medical Center, Dallas, TX.
authors: J Gregory
authors: JG
authors: Modrall
authors: Division of Vascular and Endovascular Surgery, UT Southwestern Medical Center, Dallas, TX.
authors: R James
authors: RJ
authors: Valentine
mesh_terms: D000785:Aneurysm, Infected / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D003937:Diagnosis, Differential; D017548:Echocardiography, Transesophageal; D004697:Endocarditis, Bacterial / Q000150:complications* / Q000175:diagnosis / Q000382:microbiology; D005260:Female; D006801:Humans; D017537:Mesenteric Artery, Inferior; D008875:Middle Aged; D013203:Staphylococcal Infections / Q000150:complications* / Q000175:diagnosis / Q000382:microbiology; D013210:Staphylococcus / Q000302:isolation & purification*; D014057:Tomography, X-Ray Computed; D014656:Vascular Surgical Procedures / Q000379:methods