Neoplasms located in the brain ventricles, including the two lateral, the third, and the fourth ventricle. Ventricular tumors may be primary (e.g., CHOROID PLEXUS NEOPLASMS and GLIOMA, SUBEPENDYMAL), metastasize from distant organs, or occur as extensions of locally invasive tumors from adjacent brain structures.

Synonyms: Brain Ventricular Neoplasms, Intraventricular Neoplasms, Neoplasms, Cerebroventricular, Neoplasms, Cerebral Ventricle, Ventricle Tumors, Cerebral, Cerebroventricular Neoplasm, Brain Ventricular Neoplasm, Neoplasms, Brain Ventricular, Ventricle Tumor, Cerebral, Cerebroventricular Neoplasms, Tumor, Brain Ventricular, Neoplasm, Cerebroventricular, Cerebral Ventricle Tumors, Tumors, Cerebral Ventricle, Intraventricular Neoplasm, Neoplasms, Intraventricular, Cerebral Ventricle Tumor, Ventricular Neoplasm, Brain, Tumor, Cerebral Ventricle, Brain Ventricular Tumors, Brain Ventricular Tumor, Ventricular Tumors, Brain, Tumors, Brain Ventricular, Ventricular Tumor, Brain, Neoplasm, Intraventricular, Neoplasm, Cerebral Ventricle, Cerebral Ventricle Neoplasm, Cerebral Ventricle Neoplasms, Ventricular Neoplasms, Brain, Neoplasms, Ventricular, Brain, Neoplasm, Brain Ventricular