Definition of Nonseminoma
Nonseminoma: A type of testicular cancer that arises in specialized sex cells called germ cells that give rise to sperm. Nonseminomas include embryonal carcinoma, teratoma, choriocarcinoma, and yolk sac tumor.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=4579
Last Editorial Review: 3/19/2012
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