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The endodermal sinus tumors are rare and highly malignant germ cell origin tumors occuring in both gonadal and extragonadal tissue.
We have experienced a case of endodermal sinus tumor mixed with benign teratoma occuring in the common bile duct. It is a very rare site for endodermal sinus tumor. Serum α-fetoprotein was well correlated with clinical course. |
