[true neoplasm composed of a number of different types of tissue, none of which is native to the area in which it occurs; composed of tissues that are derived from three germinal layers, the endoderm, mesoderm, and ectoderm; may be solid or cystic and are classified histologically as mature, immature, and malignant. ( CSP )]
UMLS (NCI) C0039538 Relation/PAR: Neoplasms, Germ Cell and Embryonal
germ cell neoplasm
Relation/CHD: Struma Ovarii