title: Unruptured abdominal aortic aneurysm mimicking hip joint disease.
abstract: A 66-year-old man with an 8-month history of progressive left hip pain was found to have a large unruptured infrarenal aortic aneurysm. The hip pain abated after aneurysm repair. His clinical picture suggested that the hip pain was caused by aneurysmal sac encroachment upon a nerve branch of the lumbar plexus. We report this previously unrecognized association to heighten awareness of this atypical but potentially life threatening cause of hip pain.
mesh_terms: D000368:Aged; D001012:Aorta, Abdominal; D001014:Aortic Aneurysm / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D001027:Aortography; D003937:Diagnosis, Differential; D006621:Hip Joint; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis; D008297:Male; D010146:Pain / Q000209:etiology*