And quercetin(QU), one of inhibitors of lipoxygenase pathway, was observed on procedure from preneoplastic foci into nodules in rat liver.

方法利用大白鼠复制病变发生的动物模，然后将带有病灶的大鼠分组。

Conclusions EPS is a kind of gestational trophoblastic disease primarily involving IT.It may be a preneoplastic lesion of placental site trophoblastic tumor (PSTT).

结论EPS反应属于中间细胞为主的妊娠细胞疾病，可能为胎盘部位细胞肿瘤的期病变。