Primitive neuroectodermal tumor
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Not to be confused with pancreatic neuroendocrine tumor, which is also abbreviated as PNET.
Primitive neuroectodermal tumor is a malignant (cancerous) neural crest tumor.[1] It is a rare tumor, usually occurring in children and young adults under 25 years of age. The overall 5 year survival rate is about 53%.[2]
Quick Facts Other names, Specialty ...
Primitive neuroectodermal tumor | |
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Other names | PNET |
Micrograph of an H&E stained section of a peripheral PNET. | |
Specialty | Oncology |
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It gets its name because the majority of the cells in the tumor are derived from neuroectoderm, but have not developed and differentiated in the way a normal neuron would, and so the cells appear "primitive". PNET belongs to the Ewing family of tumors.