Superior mesenteric artery (SMA) syndrome

Case contributed by Dr MohammadTaghi Niknejad

Presentation

Post-prandial abdominal pain

Patient Data

Age: 47
Gender: Male
Modality: CT

Angle between SMA and aorta decreased (13 degrees) and duodenum is dilated before this section .

Ring artifact is also present, possibly due to a malfunctioning detector.

Modality: Annotated image

Angle between SMA and aorta decreased (13 degrees) and duodenum is dilated before this section .

Case Discussion

The findings in this patient with post-prandial abdominal pain are compatible with SMA syndrome.

Normally, the aortomesenteric angle and aortomesenteric distance is

  • aortomesenteric angle: 25°-60°
  • aortomesenteric distance: 10-28 mm

 In SMA syndrome, both parameters are reduced, with values of 6°-15° and 2-8 mm.

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Case Information

rID: 20522
Case created: 23rd Nov 2012
Last edited: 29th Nov 2015
Inclusion in quiz mode: Included

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