Displacement of lymphatic vessels by an abnormal vein.
D000293:Adolescent; D000792:Angiography; D006801:Humans; D007084:Iliac Vein; D008206:Lymphatic Diseases / Q000000981:diagnostic imaging; D008220:Lymphography; D008297:Male; D012187:Retroperitoneal Space; D014567:Urography; D014680:Veins / Q000002:abnormalities*; D014682:Vena Cava, Inferior / Q000002:abnormalities