ABSTRACT
Thirty selected female patients with SMAS suffering from dyspepsia in the form of post-prandial epigastric pain, distension nausea and vomiting were studied. Other causes of dyspepsia were excluded. We examined superior mesenteric artery at its origin from abdominal aorta by ultrasonography in longitudinal and transverse sections and estimated the distance and angle between it and the aorta. The results were compared with those of 10 normal fermales. The distance between SMA and aorta was found to be 2-3 mm with a mean of 2.5 mm in patients with SMAS compared to 10-20 mm with a mean of 18mm in controls. Also the angle between SMA and aorta was from 10-20