title: Anterior displacement of the abdominal aorta: a radiographic and sonographic study.
mesh_terms: D000368:Aged; D001012:Aorta, Abdominal / Q000000981:diagnostic imaging; D001018:Aortic Diseases / Q000209:etiology; D002114:Calcinosis / Q000209:etiology; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications; D011859:Radiography; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014463:Ultrasonography