embryonal carcinoma em·bry·on·al carcinoma (ěm’brē-ə-nəl)
A malignant neoplasm of the testis.
- Embryonal carcinosarcoma
embryonal carcinosarcoma n. See blastoma.
- Embryonal rhabdomyosarcoma
embryonal rhabdomyosarcoma n. A form of rhabdomyosarcoma occurring in infants and children and characterized by the occurrence of malignant tumors of loose, spindle-celled tissue throughout the body.
- Embryonal leukemia
embryonal leukemia n. See stem cell leukemia.
- Embryonal tumor
embryonal tumor or embryonic tumor n. A usually malignant tumor arising during intrauterine or early postnatal development from the rudiments of an organ or from immature tissue and forming immature structures characteristic of the part from which it arises. Also called embryoma.