primitive neuroectodermal tumor

primitive neuroectodermal tumor
(PNET) a heterogeneous group of neoplasms thought to derive from undifferentiated neuroglial cells of the neural crest. Some occur in the brain and some (the peripheral neuroectodermal tumors) elsewhere, such as on a limb, the pelvis, or the chest wall. The classification also includes the neuroepithelial tumors of childhood.

Medical dictionary. 2011.

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  • central nervous system primitive neuroectodermal tumor — CNS PNET …   English dictionary of cancer terms

  • peripheral primitive neuroectodermal tumor — A type of cancer that forms in bone or soft tissue. Also called pPNET and Ewing sarcoma …   English dictionary of cancer terms

  • Primitive neuroectodermal tumors — A type of brain tumor believed to originate in neural crest cells. Diagnosis is by biopsy. Treatment is by radiation and/or chemotherapy. Abbreviated PNET. See also Ewing’s sarcoma …   Medical dictionary

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