Central Nervous System Teratoma with Malignant Transformation

**Semantic type:** Neoplastic Process

**Definition:** A central nervous system teratoma characterized by the presence of a malignant component. The malignant component most often is sarcomatous (rhabdomyosarcoma or undifferentiated sarcoma) or carcinomatous (squamous cell carcinoma or adenocarcinoma).

**Synonyms:** - CNS Teratoma with Malignant Transformation - Teratoma of CNS with Malignant Transformation - Teratoma of Central Nervous System with Malignant Transformation - Teratoma of the CNS with Malignant Transformation - Teratoma of the Central Nervous System with Malignant Transformation