Superior mesenteric artery syndrome

Case contributed by Mohammad Taghi Niknejad
Diagnosis almost certain


Abdominal pain and weight loss.

Patient Data

Age: 30 years
Gender: Female

The third part of duodenum is compressed between the aorta and superior mesenteric artery with dilatation of the proximal duodenum and stomach. Aortomesenteric distance and angle measuring 6mm and 20 degrees, respectively. 
The gallbladder is not seen at anatomical location due to prior resection. 

Case Discussion

Features on CT scan consistent with superior mesenteric artery syndrome
Normally, the aortomesenteric angle and aortomesenteric distance are 28-65° and 10-34 mm, respectively. In SMA syndrome, both parameters are reduced, with values of 6° to 22° and 2 to 8 mm.

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