endodermal sinus tumor
Definition: a malignant neoplasm occurring in the gonads, in sacrococcygeal teratomas, and in the mediastinum; produces a-fetoprotein and is thought to be derived from primitive endodermal cells.
Synonym(s): yolk sac tumor
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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.