Malignant Brain Stem Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A primary or metastatic malignant neoplasm that affects the brain stem.

**Synonyms:** - Malignant Brain Stem Tumor - Malignant Brainstem Neoplasm - Malignant Brainstem Tumor - Malignant Neoplasm of Brain Stem - Malignant Neoplasm of Brainstem - Malignant Neoplasm of the Brain Stem - Malignant Neoplasm of the Brainstem - Malignant Tumor of Brain Stem - Malignant Tumor of Brainstem - Malignant Tumor of the Brain Stem - Malignant Tumor of the Brainstem - Malignant neoplasm of brain stem