Peripheral Primitive Neuroectodermal Tumor

**Semantic type:** Neoplastic Process

**Definition:** A small round cell tumor with neural differentiation arising from the soft tissues or bone.

**Synonyms:** - Neuro-Differentiated Ewing Tumor - PPNET - Peripheral Neuroectodermal Neoplasm - Peripheral Neuroectodermal Tumor - Peripheral Neuroepithelioma - Peripheral PNET - Peripheral Primitive Neuroectodermal Neoplasm - Peripheral neuroectodermal tumor - pPNET - pPNET - peripheral primitive neuroectodermal tumor