
Embryonal tumor is a mass of rapidly growing cells. It is believed that it begins in embryonic (fetal) tissue. Embryonal tumors may be benign or malignant, and include neuroblastomas and Wilms tumors. Also called embryoma. Embryomas have been defined as: `Adult neoplasms expressing one or more embryo-exclusive genes`, in: `Embryoma Gene Network......
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http://en.wikipedia.org/wiki/Embryoma

A mass of rapidly growing cells that begins in embryonic (fetal) tissue. Embryomas may be benign or malignant, and include neuroblastomas and Wilms tumors. Also called embryonal tumor.
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http://www.cancer.gov/dictionary?expand=E

Synonym for embryonal tumour ... Embryonic tumour, a neoplasm, usually malignant, which arises during intrauterine or early postnatal development from an organ rudiment or immature tissue; it forms immature structures characteristic of the part from which it arises, and may form other tissues as well. The term includes neuroblastoma and Wilms' tumo...
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http://www.encyclo.co.uk/local/20973

(em″bre-o´mә) a neoplasm thought to be derived from embryonic cells or tissues, such as a dermoid cyst, primitive neuroectodermal tumor, teratoma, or embryonal carcinoma.
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http://www.encyclo.co.uk/local/21001

Type: Term Pronunciation: em′brē-ō′mă Synonyms: embryonal tumor
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http://www.medilexicon.com/medicaldictionary.php?t=28554
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