Spontaneous Regression of Extruded Lumbar Disc Herniation: Three Cases Report
A 67-year-old male was admitted to our hospital with right lower extremity pain and hypoesthesia, especially on the left L5 dermatome. MR images showed extruded HNP at the L 4-5 level (). We recommended surgical treatment, but he refused. As such, we treated conservatively. The pain was relieved gradually and followed up as an outpatient. Nine months later, the pain disappeared and the hypoesthesia was weakly remained. Follow-up MR images showed no HNP ().