AKA: Wilke's<unk> 
Rare condition, first described by Von Rokitansky in 1861 and then further studied in detail by Wilke in 1912
Occurs when duodenum is compressed between aorta and<unk><unk><unk> 
Can lead to gastrointestinal obstruction at level of duodenum
Chronic, intermittent, or acute
Partial or complete
Controversy over this diagnosis
Chronic, intermittent, or acute
Partial or complete
SMA takes off from the abdominal aorta at about 45 degree angle, due to cushioning from fatty/lymphatic tissue called<unk>  pad
Third part of the duodenum courses between the angle formed
Narrowing of this angle can cause entrap and compress of the duodenum
Factors that narrow this angle include:
Significant weight loss (most common cause)
Corrective spinal surgery for scoliosis lengthens the spine
Congenital defects, suggested genetic predisposition
Abdominal adhesions
Significant weight loss (most common cause)
Congenital defects, suggested genetic predisposition
Abdominal adhesions
Superior mesenteric artery syndrome
See Abdominal Pain
Mesenteric vein thrombosis
See Nausea and vomiting
Splenic artery aneurysm
Splenic infarction
Abdominal aortic aneurysm
Epiploic appendagitis