Monarch Disease Ontology entry MONDO_0002682 (cerebral ventricle cancer) is a neoplasm that involves a brain ventricle. It may be a primary neoplasm arising from a brain ventricle, a metastasis from a distant anatomic site, or an extension of an invasive neoplasm from an adjacent brain structure. Also known as: brain neoplasms, intraventricular, brain ventricle cancer, cancer of brain ventricle, cerebral ventricle neoplasm, intraventricular brain neoplasm, intraventricular brain neoplasms, intraventricular brain tumor, intraventricular brain tumour.