Rare Case of Multifocal Spinal Hemangioblastomas With Holocord Syringo-Hydromyelia in an Adolescent Male.

Hemangioblastomas are benign, highly vascular tumors of the central nervous system. Although they most commonly arise in the cerebellum, they may also involve the brainstem and spinal cord. The presence of multiple spinal hemangioblastomas is frequently associated with von Hippel-Lindau (VHL) syndrome; however, sporadic cases without an underlying genetic syndrome can occur. Characteristic imaging features include avid post-contrast enhancement, associated syrinx formation, and intratumoral or peritumoral flow voids. Spinal hemangioblastomas account for a small proportion of intramedullary spinal tumors and are rarely reported in adolescents. We present a rare case of multifocal spinal hemangioblastomas with extensive holocord syringo-hydromyelia in an adolescent male patient without any evidence of VHL syndrome.