Preferred Label : Teratoma;
NCIt related terms : Teratoma, Not Otherwise Specified; Teratoma, NOS;
NCIt definition : A non-seminomatous germ cell tumor characterized by the presence of various tissues
which correspond to the different germinal layers (endoderm, mesoderm, and ectoderm).
It occurs in the testis, ovary, and extragonadal sites including central nervous system,
mediastinum, lung, and stomach. According to the level of differentiation of the tissues
which comprise the tumor, teratomas are classified as benign (grade 0 or 1), immature
(grade 2), and malignant (grade 3). Grade 0 teratomas contain only mature elements;
grade 1 teratomas have a limited degree of immaturity; grade 2 teratomas have a more
extensive degree of immaturity; grade 3 teratomas are composed exclusively of immature
tissues. The prognosis depends on patient age, tumor size and grade, and stage.;
Alternative definition : NCI-GLOSS: A type of germ cell tumor that may contain several different types of tissue,
such as hair, muscle, and bone. Teratomas occur most often in the ovaries in women,
the testicles in men, and the tailbone in children. Not all teratomas are malignant.; NICHD: A non-germinomatous germ cell tumor characterized by the presence of various
tissues which correspond to the different germinal layers (endoderm, mesoderm, and
ectoderm). It occurs in the testis, ovary, and extragonadal sites including central
nervous system, mediastinum, lung, and stomach. According to the level of differentiation
of the tissues which comprise the tumor, teratomas are classified as mature or immature.
Mature teratomas are composed of well differentiated, adult-type tissues. Immature
teratomas are composed of immature, fetal-type tissues.;
Neoplastic status : Undetermined;
ICD-O code : 9080/1;
Codes from synonyms : CDR0000044248;
Origin ID : C3403;
UMLS CUI : C0039538;
Automatic exact mappings (from CISMeF team)
Currated CISMeF NLP mapping
DO Cross reference
Disease excludes abnormal cell
Disease may have findings
HPO term
Semantic type(s)
UMLS correspondences (same concept)
associated_with_malfunction_of_gene_product
concept_is_in_subset
disease_excludes_finding
disease_has_abnormal_cell
disease_has_associated_gene
disease_has_normal_cell_origin
disease_has_normal_tissue_origin
human_disease_maps_to_eo_disease
neoplasm_has_special_category