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Imaging and clinical findings in segmental arterial mediolysis (SAM)

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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.

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Authors and Affiliations

  1. Department of Radiology, Mayo Clinic in Arizona, 5777 E. Mayo Blvd, Phoenix, AZ, 85054, USA

    Kinan Alhalabi, Christine Menias & Sailendra Naidu

  2. Baptist-Brookwood Health System, 701 Princeton Ave SW, Birmingham, AL, 35211, USA

    Robert Hines

  3. Department of Radiology, Cleveland Clinic, 2049 E. 100th St, Cleveland, OH, 44195, USA

    Ihsan Mamoun

Authors
  1. Kinan Alhalabi
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  2. Christine Menias
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  3. Robert Hines
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  4. Ihsan Mamoun
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  5. Sailendra Naidu
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Correspondence to Kinan Alhalabi.

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The authors declare that they have no conflict of interest

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Alhalabi, K., Menias, C., Hines, R. et al. Imaging and clinical findings in segmental arterial mediolysis (SAM). Abdom Radiol 42, 602–611 (2017). https://doi.org/10.1007/s00261-016-0887-4

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  • DOI: https://doi.org/10.1007/s00261-016-0887-4

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