Medulloblastoma

What it means

A rapidly growing embryonic tumor arising in the posterior part of the cerebellar vermis and neuroepithelial roof of the fourth ventricle in children. More rarely, medulloblastoma arises in the cerebellum in adults.

Medulloblastoma is a highly malignant primary brain tumor that originates in the cerebellum or posterior fossa and belonging to the family of cranial primitive neuroectodermal tumors.

Rare diseases that can present with this6

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category