ions.Thesecretoryphasefollowsaset14daycourseleadingtoeitherimplantationofafertilizedovumormenstruation.晚期分泌期(月经前期)(secretoryphaseendometrium)5EndometralCa单纯增生?(simplehyperplasia)子宫内膜腺体和间质增生,腺体不规则,可扩张呈囊性并有群集间质致密无细胞异型性6EndometralCa复合增生?(complexhyperplasia)腺体高度增生,成芽状或乳头状,腺体不规则,呈现结构复杂和背靠背的群集,细胞呈复层或假复层无细胞异型性7EndometralCa非典型增生(atypicalhyperplasia)细胞极性消失,大小不一,核深染,腺上皮细胞异行型;无间质浸润。根据腺上皮增生程度分为轻、中、重。8EndometralCaThisisendometrialcystichyperplasiainwhichtheamountofendometriumisabnormallyincreasedandnotcyclingasitshould.Theglandsareenlargedandirregularwithcolumnarcellsthathavesomeatypia.Simpleendometrialhyperplasiascancausebleeding,butarenotthoughttobepremalignant.However,adenomatoushyperplasiaispremalignant.子宫内膜非典型增生9EndometralCa非典型增生(atypicalhyperplasia)轻度非典型增生:腺体轮廓稍不规则,腺上皮细胞轻度异行型,无间质浸润。10EndometralCa