title: Radiopaque Line in Front of the Lumbar Spine During a S1 Transforaminal Epidural Injection: Where Is the Contrast?
authors.affiliation: From the Section of Pain Medicine, Department of Physical Medicine and Rehabilitation, Marmara University School of Medicine, Istanbul, Turkey.
authors.forename: Osman Hakan
authors.initials: OH
authors.lastname: Gunduz
authors.forename: Tulay
authors.initials: T
authors.lastname: Ercalik
authors.forename: Mehmet Cetin
authors.initials: MC
authors.lastname: Baskaya
mesh_terms: D003287:Contrast Media; D006801:Humans; D007268:Injections, Epidural / Q000379:methods*; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008488:Medical Illustration; D008875:Middle Aged; D059352:Musculoskeletal Pain / Q000000981:diagnostic imaging*
chemical_list: D003287:Contrast Media