１９７５年１月～１９９２年１２月收治卵巢内胚窦瘤３０例，为同期卵巢恶性肿瘤５２９例中的５．６７％。３０例中现健存１４例，１年生存率为６３．３％，２２年生存率４６．７％，３０例中１３例在１９７５～１９８４年发病，其１年生存率４６．２％，≥２年生存率１５，４％；而１９８５～１９９２年的１７例中，１年生存率７６；５％，≥２年生存率７０．６％，两个年度比较差异有极显著意义（Ｐ＜０．０１）。其临床分期、残余瘤灶与预后密切相关（Ｐ＜Ｏ．０１），术后不化疗、间歇期延长或过早中断治疗是复发、恶化的主要原因，手术范围的大小与预后无明显差异（Ｐ＞０．０５）。 From January 1975 to December 1992, 30 cases of ovarian endodermal sinus tumors were treated, accounting for 5.67% of the 529 cases of ovarian malignant tumors in the same period. Among the 30 cases, 14 were alive and survived, with a one-year survival rate of 63.3% and a 22-year survival rate of 46.7%. Thirteen of 30 patients developed between 1975 and 1984 with a 1-year survival rate of 46.2% ≥2 years survival rate was 15.4%; and among the 17 cases from 1985 to 1992, the 1-year survival rate was 76.5% and the 2-year survival rate was 70.6%. There was significant difference between the two years (P <0.01). The clinical stage, residual tumor and prognosis are closely related (P <0.01), postoperative chemotherapy, intermittent prolonged or early interruption of treatment is the main reason for recurrence and worsening, the size of the surgical range and prognosis was no significant difference P> 0.05).