Table 3

Characteristics of chronic placental inflammatory responses (Amsterdam criteria30)

Chronic inflammatory response Cellular infiltration
Chronic deciduitisLymphocytes (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