Teratoma (definition)

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Teratoma

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Definition: A true neoplasm composed of a number of different types of tissue, none of which is native to the area in which it occurs. It is composed of tissues that are derived from three germinal layers, the endoderm, mesoderm, and ectoderm. They are classified histologically as mature (benign) or immature (malignant). (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1642)

/blood supply /chem /second /secret /ultrastruct permitted; coord IM with precoord organ/neopl term (IM)
Examples Dermoid Cyst; Struma Ovarii

Other names Tumors, Teratoid; Tumor, Teratoid; Teratomas, Malignant; Teratomas, Immature; Teratomas, Benign; Teratomas; Teratoid Tumors; Malignant Teratomas; Malignant Teratoma; Immature Teratomas; Immature Teratoma; Dysembryomas; Benign Teratomas; Benign Teratoma; Teratoma, Malignant; Teratoma, Immature; Teratoma, Benign; Teratoma, Mature; Teratoma, Cystic; Teratoid Tumor

Substance	CAS Registry & name	Categories	Source
Nasopharyngeal teratoma with Dandy Walker diaphragmatic hernia	0	Abnormalities, Multiple Dandy-Walker Syndrome Hernia, Diaphragmatic Nasopharyngeal Neoplasms *Teratoma.
Pineal Teratoma	0	Pinealoma Teratoma.
Malignant Teratocarcinosarcoma	0	Carcinosarcoma Nose Neoplasms *Teratoma.

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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