title: Spontaneous regression of a large lumbar disc extrusion.
abstract: Although the spontaneous disappearance or decrease in size of a herniated disc is well known, that of a large extruded disc has rarely been reported. This paper reports a case of a spontaneous regression of a large lumbar disc extrusion. The disc regressed spontaneously with clinical improvement and was documented on a follow up MRI study 6 months later. The literature is reviewed and the possible mechanisms of spontaneous disc regression are discussed.
authors.affiliation: Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.
authors.forename: Sung-Joo
authors.initials: SJ
authors.lastname: Ryu
authors.forename: In Soo
authors.initials: IS
authors.lastname: Kim