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KMID : 0357919920260040405
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Korean Journal of Pathology
1992 Volume.26 No. 4 p.405 ~ p.410
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Gastric Choriocarcinoma and Endodermal Sinus Tumor in Collision Tumor
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Abstract
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Both primary choriocarcinoma and endodermal sinus tumor of the stomach are very
rare entities. Combination of these two tumors is even rarer, and only a single such
case has been reported in English literature. The case had gastric adenocarcinoma in
addition to these tumors.
We experienced a case of combined, pure choriocarcinoma and endodermal sinus tumor
in the stomach of a 74 year-old man. He had no gonadal or any other primary tumor.
Huge exophytic tumor was located in the lesser curvature of the body. Two components
of the tumor was separated arid clearly defined. Human chorionic gonadotropin(HCG)
was demonstrated in serum and in tissue sections. Alpha-fetoprotein(α-FP) was also
elevated in the serum. Possible tumor origin was speculated.
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KEYWORD
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