卵巢内胚窦瘤是一种由胚外结构—卵黄囊的高度恶性的生殖细胞肿瘤。本病起病急,生长快,复发率高,恶性度高,预后差。现将我院自1976年以来收治及随访的11例报告如下。临床所见。卵巢内胚窦瘤11例占我院10年来共收治卵巢恶性肿瘤138例的8%。其中12岁～33岁10例。入院主要症状为盆腔肿块、腹痛、发烧。11例中仅1例术前诊断为本病;2例诊断为卵巢恶性肿瘤;其余8例术前均未作出明确诊断。该肿瘤产生甲胎蛋白(AFP),因多数病人行急症手术,因此术前仅5例测 AFP,其中2例(+)。木后8例继续测 AFP,3例(+),2例(-)转(+),该5例均出现复发,病情恶化或死亡。3例术后 AFP一直(-),尚健在。术前9 Ovarian endodermal sinus tumor is a highly malignant germ cell tumor composed of extra-embryonic structures - the yolk sac. The disease onset acute, fast growth, high recurrence rate, high malignant, poor prognosis. Now our hospital since 1976 and follow-up of 11 cases are as follows. Clinical findings. 11 cases of ovarian endodermal sinus tumors accounted for 8 years in our hospital a total of 138 cases of ovarian cancer were treated 8%. Of which 12 years old to 33 years in 10 cases. The main symptoms of admission pelvic mass, abdominal pain, fever. Only 1 of the 11 cases was diagnosed as preoperative; 2 cases were diagnosed as ovarian malignancies; and the other 8 cases were not diagnosed preoperatively. The tumor produces alpha-fetoprotein (AFP), as most patients underwent emergency surgery, so preoperative measurement of only 5 cases of AFP, of which 2 (+). After 8 cases of wood continue to test AFP, 3 cases (+), 2 cases (-) transfer (+), the 5 cases were relapsed, the disease deteriorated or died. 3 cases of postoperative AFP has been (-), still alive. Preoperative 9