Hernia medular espontanea: reporte de un caso. Revision de la literatura y teoria sobre las imagenes de IRM postoperatorias / Spontaneous spinal cord hernia. Case report, literature review and a theory about post operative MRI

ABSTRACT

Objective: to describe a new case of idiopathic spinal cord herniation. Description: a 34 year-old male patient had during the last 5 years a progressive Brown-Sequard syndrome. MRI showed ventral displacement of the spinal cord at T7-T8 and widening of the posterior subarachnoid space. Intervention: a laminectomy was performed with reduction of the herniated cord and closure of the dural defect with a graft. Postoperative outcome was uneventful and the patient improved neurologically. Control MRI showed hyperintense cord signals at the level of the previous herniated level. Conclusion: surgery with reduction of the hernia and dura closure provided symptomatic improvement. Postoperative MRI cord hyperintense signals may correspond to syringomyelia