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primitive neuroectodermal tumor


Definition: a designation used to refer to a group of morphologically similar embryonal neoplasms that arise in intracranial and peripheral sites of the nervous system and that may show various degrees of cellular differentiation; includes medulloblastoma, pineoblastoma, among others.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.