endodermal sinus tumor

Medical Dictionary

endodermal sinus tumor n.
A malignant neoplasm occurring in the gonads, in sacrococcygeal teratomas, and in the mediastinum and producing alpha-fetoprotein. Also called yolk-sac tumor.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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