Conclusion: Ln and FN have close relationship with the formation of chorion and decidual tissue in early pregnancy, and the etiology, invasion of gastational trophoblastic tumors.

• 结论：层粘连蛋白和纤维粘连蛋白与孕早期绒毛膜和蜕膜的形成及滋养细胞肿瘤的发生、侵润密切相关。