Dysembryoplastic Neuroepithelial Tumor

**Semantic type:** Neoplastic Process

**Definition:** A glial-neuronal neoplasm located in the cortex. It occurs in children and young adults with a long-standing history of partial seizures. A histologic hallmark of this tumor is the 'specific glioneuronal element', characterized by columns, made up of bundles of axons, oriented perpendicularly to the cortical surface. (Adapted from WHO)

**Synonyms:** - DNET - DNT - Dysembryoplastic Neuroepithelial Neoplasm - Dysembryoplastic neuroepithelial tumor