Monarch Disease Ontology entry MONDO_0016718 (choroid plexus carcinoma) is a malignant neoplasm arising from the choroid plexus. It shows anaplastic features and usually invades neighboring brain structures. Cerebrospinal fluid metastases are frequent. (Adapted from WHO). Also known as: anaplastic choroid plexus papilloma, carcinoma of choroid plexus, carcinoma of the choroid plexus, carcinoma, choroid plexus, malignant, choroid plexus carcinoma (morphologic abnormality).