Primitive Neuroectodermal Tumor

Primitive Neuroectodermal Tumor

Primitive neuroectodermal tumors (PNET) refer to tumors such as medulloblastoma, polar spongioblastoma, pineoblastoma and medulloepithelioma. They develop primarily in the cerebrum, but can spread to other parts of the brain and spine. These are all very rare tumors, except for medulloblastoma.

Primitive neuroectodermal tumors are highly malignant. They contain underdeveloped brain cells and tend to spread throughout the central nervous system. These tumors often contain areas of cysts and dead tumor cells. Fluid surrounding this type of tumor is not uncommon.

Primitive neuroectodermal tumors most often occur in very young children, although like many tumor types, their exact cause is unknown.

Primitive Neuroectodermal Tumor Symptoms

Because primitive neuroectodermal tumors tend to be large, symptoms of increased pressure in the brain are often present, including:

  • Fatigue/lethargy
  • Headache (most often in the morning)
  • Seizures
  • Vomiting

Getting Diagnosed

Our team of specialists provides the most up-to-date evaluations using the latest diagnostic and imaging technology.

We work very closely with the departments of Neurosurgery, Interventional Neuroradiology, Neurology and Radiation Oncology, as well as the Normal Pressure Hydrocephalus Center and Skull Base Center to ensure an accurate diagnosis and the appropriate treatment for the best outcome.


Make an appointment

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The Neuroscience Institute

We are dedicated to the world-class diagnosis and treatment of neurological diseases and disorders.