A embryonal carcinoma of the central nervous system that occurs in an adult. The disease is adult central nervous system embryonal carcinoma (Monarch Disease Ontology entry MONDO_0004155). Also known as: Central nervous system embryonal carcinoma, adult CNS embryonal carcinoma, adult embryonal carcinoma of the central nervous system, embryonal carcinoma of adult CNS, embryonal carcinoma of adult central nervous system, embryonal carcinoma of the adult CNS, embryonal carcinoma of the adult central nervous system, embryonal carcinoma of the central nervous system of adults.