title: Orthostatic proteinuria as a result of venous compression (nutcracker phenomenon)--a hypothesis testable with modern imaging techniques.
mesh_terms: D002648:Child; D003251:Constriction, Pathologic; D006801:Humans; D008297:Male; D017538:Mesenteric Artery, Superior / Q000002:abnormalities* / Q000000981:diagnostic imaging; D011507:Proteinuria / Q000209:etiology*; D011859:Radiography; D012082:Renal Veins / Q000002:abnormalities* / Q000000981:diagnostic imaging; D013478:Superior Mesenteric Artery Syndrome; D018608:Ultrasonography, Doppler