European Journal of Gynaecological Oncology (EJGO) is published by IMR Press from Volume 40 Issue 1 (2019). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.
Three cases of Endodermal Sinus Tumor are presented and its difference from tumors of the mesonephroma type and associations with the embryoma are pointed out. The three cases were «Pure» types and the patients died within 5 months in spite of surgical treatment and chemotherapy. Autopsy showed extensive involvement of peritoneum, diaphragm and pleura.