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teratoma
(redirected from Foetus in Fetu)

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.02 sec.
teratoma /ter·a·to·ma/ (ter″ah-to´mah) pl. terato´mata, teratomas   a true neoplasm made up of different types of tissue, none of which is native to the area in which it occurs; usually found in the ovary or testis.teratom´atous
malignant teratoma 
1. a solid, malignant ovarian tumor resembling a dermoid cyst but composed of immature embryonal and/or extraembryonal elements derived from all three germ layers.

ter·a·to·ma (tr-tm)
n. pl. ter·a·to·mas or ter·a·to·ma·ta (-m-t)
A tumor consisting of different types of tissue, as of skin, hair, and muscle, caused by the development of independent germ cells. Also called teratoblastoma, teratoid tumor.

tera·toma·tous (-tm-ts) adj.

teratoma
[ter′ətō′mə] pl. teratomas, teratomata,
a tumor composed of different kinds of tissue, none of which normally occurs together or at the site of the tumor. Teratomas are most common in the ovaries or testes.

teratoma (ter´tō´m),
n a tumor composed of cells capable of differentiating into any of the three primary germ layers. Teratomas in the ovary are usually benign dermoidal cysts; those in the testis are generally malignant.

teratoma
a true neoplasm made up of a number of different types of tissue, none of which is native to the area in which it occurs; usually found in the ovary or testis. See also dermoid cyst.

malignant teratoma
a solid, malignant ovarian tumor resembling a dermoid cyst but composed of immature embryonal or extraembryonal elements derived from all three germ layers.


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