Definition of Pineoblastoma
Pineoblastoma: A fast-growing brain tumor in the pineal gland that originates in neuroepithelial cells. This malignancy is considered by many to be one of the primitive neuroectodermal tumors (PNETs). Also known as pinealoblastoma.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 3/19/2012
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