Neoplasms by Histologic Type [Disease/Finding] Neoplasms, Germ Cell and Embryonal [Disease/Finding] D009373 Neoplasms, Germ Cell and Embryonic N0000002132 C4442 M0014592 Germ Cell and Embryonic Neoplasms 1026873 Neoplasms, Germ Cell and Embryonal Neoplasms composed of primordial GERM CELLS of embryonic GONADS or of elements of the germ layers of the EMBRYO, MAMMALIAN. The concept does not refer to neoplasms located in the gonads or present in an embryo or FETUS. Germ Cell and Embryonal Neoplasms C0027658 Neoplasms, Germ Cell and Embryonal