Intradural Disc Herniation Presented as Cauda Equina Syndrome: Brief Review Addressing Underlying Pathogenesis, Neuroimaging Features, and Surgical Outcome

Abstract

Abstract Intradural disc herniations (IDHs) are rare clinical events, and there have been few literature reports addressing their pathogenesis, neuroimaging features, operative tenets, and surgical outcome. A 45-year-old male presented with features of cauda equina syndrome for 2 days with an antecedent history of low-back pain and bilateral sciatica for 6 months. Magnetic resonance imaging demonstrated a huge compressing lesion, obliterating the dural sac at the L5-S1 level with marked caudal migration of the extruded disc fragments. He underwent surgery and recovered well. Our case demonstrates a unique presentation of IDH having both intradural and postdural components.