Superior mesenteric artery (SMA) syndrome is a disorder in which the third portion of the duodenum is compressed between the abdominal aorta (AA) and the overlying superior mesenteric artery.

Dr. Brian Gay from First Look MRI explains how to read a Abdominal MRI scan. [ Ссылка ]

SMA syndrome is also known as Wilkie's syndrome, cast syndrome, mesenteric root syndrome, chronic duodenal ileus and intermittent arterio-mesenteric occlusion.
It is distinct from nutcracker syndrome, which is the entrapment of the left renal vein between the AA and the SMA, although it is possible to be diagnosed with both conditions.

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