title: Myelographic defect on the side opposite the leg pain. A case report with an explanation of mechanism of action.
abstract: An explanation for leg pain on the opposite side of the myelographic defect in one case is reported. Disc herniation was located superior to the exit of the root and thus displaced the dura and compressed the root on the opposite side against the pedicle producing contralateral leg pain.
mesh_terms: D006801:Humans; D007405:Intervertebral Disc Displacement / Q000150:complications / Q000000981:diagnostic imaging*; D007866:Leg; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D009192:Myelography; D009408:Nerve Compression Syndromes / Q000209:etiology; D010146:Pain / Q000209:etiology*; D059408:Pain Management; D013126:Spinal Nerve Roots / Q000601:surgery