Central Nervous System Medulloepithelioma

**Semantic type:** Neoplastic Process

**Definition:** A rare, usually aggressive malignant embryonal neoplasm of the central nervous system occurring in children. It is characterized by the presence of neuroepithelial cells which form papillary, trabecular, or tubular structures and absence of C19MC amplification. Symptoms include headache, nausea, and vomiting.

**Synonyms:** - Medulloepithelioma - Medulloepithelioma - Medulloepithelioma - Medulloepithelioma, Central Nervous System