adult central nervous system primitive neuroectodermal neoplasm (MONDO_0002795) is a central nervous system embryonal tumor, not otherwise specified that occurs in adults. Also known as: adult CNS PNET, adult CNS primitive neuroectodermal neoplasm, adult CNS primitive neuroectodermal tumor, adult CNS primitive neuroectodermal tumour, adult central nervous system primitive neuroectodermal tumor, adult central nervous system primitive neuroectodermal tumour, adult central primitive neuroectodermal neoplasm, adult central primitive neuroectodermal tumor.