Intra-extradural hemangioblastoma of the cauda equina.

This is a case report of a hemangioblastoma of the cauda equina with intra-extradural extension in the form of a dumbbell tumor. For the first time diagnosis of an intra-extradural spinal hemangioblastoma was made by computerized tomography (CT) and magnetic resonance imaging (MRI). A total excision was performed with microneurosurgical techniques and application of Nd:YAG laser. Clinical appearance, neuroradiological diagnostic procedures and neurosurgical therapy of intra-extradural hemangioblastomas of the cauda equina and of spinal hemangioblastomas of other localization were compared.