title: Imaging and clinical findings in segmental arterial mediolysis (SAM).
abstract: Segmental arterial mediolysis (SAM) is an uncommon, non-atherosclerotic, non-inflammatory arteriopathy that tends to affect the medium-sized splanchnic branches of the aorta along with renal, carotid, cerebral, and coronary arteries. The clinical presentation ranges from asymptomatic to severe, life-threatening intra-abdominal hemorrhage and shock. SAM overlaps clinically and radiologically with other inflammatory vasculitides. This article describes the pathologic-radiologic correlation, imaging findings, and the management of the disease. Radiologists should be familiar with this disease entity as imaging plays a crucial role in the diagnosis.
authors: Department of Radiology, Mayo Clinic in Arizona, 5777 E. Mayo Blvd, Phoenix, AZ, 85054, USA. kinan.alhalabi@live.com.
authors: Kinan
authors: 0000-0002-9069-4274
authors: K
authors: Alhalabi
authors: Department of Radiology, Mayo Clinic in Arizona, 5777 E. Mayo Blvd, Phoenix, AZ, 85054, USA.
authors: Christine
authors: C
authors: Menias
authors: Baptist-Brookwood Health System, 701 Princeton Ave SW, Birmingham, AL, 35211, USA.
authors: Robert
authors: R
authors: Hines
authors: Department of Radiology, Cleveland Clinic, 2049 E. 100th St, Cleveland, OH, 44195, USA.
authors: Ihsan
authors: I
authors: Mamoun
authors: Department of Radiology, Mayo Clinic in Arizona, 5777 E. Mayo Blvd, Phoenix, AZ, 85054, USA.
authors: Sailendra
authors: S
authors: Naidu
mesh_terms: D001158:Arteries / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D013152:Splanchnic Circulation; D014652:Vascular Diseases / Q000000981:diagnostic imaging* / Q000473:pathology
keywords: Aneurysm; Aorta; Dissection; Mediolysis