Renal vein compression.
Duodenal compression by the superior mesenteric artery is the postulated cause of the superior mesenteric artery syndrome. Our case, as well as 2 other cases of renal vein compression reported in the literature, suggests that this is uncommon but should occur more frequently in this syndrome because it is anatomically as vulnerable to compression.
D000293:Adolescent; D003251:Constriction, Pathologic; D004380:Duodenal Obstruction / Q000209:etiology*; D006801:Humans; D008297:Male; D008638:Mesenteric Arteries; D011312:Pressure; D011859:Radiography; D012082:Renal Veins / Q000000981:diagnostic imaging