Source:http://linkedlifedata.com/resource/umls/id/C1368910
NCI: A type of benign (not cancer) germ cell tumor (type of tumor that begins in the cells that give rise to sperm or eggs) that often contains several different types of tissue such as hair, muscle, and bone.,NCI: A teratoma which may be cystic; it is composed entirely of well differentiated, adult-type tissues, without evidence of fetal-type tissues.