title: A man with a bulging mass in his left lumbar region.
authors.affiliation: Department of Internal Medicine, Columbia University College of Physicians & Surgeons, St. Luke's-Roosevelt Hospital Center, 1111 Amsterdam Avenue, New York, NY 10025, USA. hefer.david@rcn.com
authors.forename: D
authors.initials: D
authors.lastname: Hefer
authors.forename: M
authors.initials: M
authors.lastname: Kirpekar
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D006547:Hernia / Q000000981:diagnostic imaging; D006801:Humans; D008161:Lumbosacral Region; D008297:Male; D014463:Ultrasonography