Characteristics of chronic placental inflammatory responses (Amsterdam criteria30)
Chronic inflammatory response | Cellular infiltration |
Chronic deciduitis | Lymphocytes (CD8+ T cells) Plasma cells Histiocytes Eosinophils |
Basal chronic villitis | |
Chronic villitis | |
Chronic intervillositis | |
Chronic chorioamnionitis | |
Eosinophilic/T-cell chronic vasculitis |
Placental inflammatory response could be predicted by maternal serum neutrophil–lymphocyte ratio.24