Metastatic Malignant Neoplasm in the Brain

**Semantic type:** Neoplastic Process

**Definition:** A malignant neoplasm that has spread to the brain from another anatomic site or system. The majority are carcinomas (usually lung or breast carcinomas).

**Synonyms:** - Brain Metastases - Brain Metastasis - Metast. to brain parenchyma, NOS - Metastases to brain parenchyma, NOS - Metastatic Malignant Neoplasm to the Brain - Metastatic Neoplasm to the Brain - Metastatic Tumor to the Brain - Secondary malignant neoplasm of brain - brain metastasis