Table 2. Genetic basis of intramedullary spinal cord tumors.

Genetic disorder	Associated tumor
Neurofibromatosis-1	Acute nonlymphocytic leukemias Astrocytomas Carcinoid tumors Hematomas Hypothalamic gliomas Malignant nerve sheath tumors Meningiomas Neurofibromas Optic nerve gliomas Pheochromocytomas Primitive neuroectodermal tumors Rhabdomyosarcomas Wilms tumor
Neurofibromatosis-2	Bilateral acoustic schwannomas Ependymomas Gliomas Meningiomas Schwannomas
Von Hippel-Landau	Adrenal pheochromocytomas Central nervous system hemangioblastoma (medulla oblongata or spinal cord) Epididymal cystadenomas Lindau tumor (cerebellum hemangioblastoma) Nephritic cysts Pancreatic cysts Renal cell carcinomas Renal cysts Retinal hemangioblastomas