Background: Placenta previa and low-lying placenta are potentially fatal conditions for both mother child. The purpose of this work was to evaluate the cut-off level distance between lower edge internal cervical os whether it can predict third trimester or not.Methods: This prospective observational carried out on 50 low- lying cases with single living pregnancy 18–24-week gestation. Patients w...

Results The expressions of B7-H1 and B7-H4 molecules were significantly higher on CD1c+ myeloid and BDCA-2+ plasmocytoid DCs in the first trimester of pregnancy when compared to the luteal phase of the ovarian cycle. Moreover, the expressions of B7-H1 molecule on CD1c+ DCs in the second trimester of normal pregnancy were significantly higher when compared to the first trimester. In the third tr...