Sampling sites from the nocardioform placentitis group and the histopathological evaluation of inflammation score. A In the nocardioform placentitis group we collected chorioallantois samples from two sites. The fist sampling site (NPL) was at the margin of the nocardioform placentitis lesion. The second sampling site (NPN) was chosen where the chorionic surface is red and velvet in appearance with no gross evidence of pathology. B, C The inflammation score in the different sets (CRL, NPN, and NPL) and reprehensive H&E images of the different inflammation scores. The inflammation was graded as score zero (no inflammation; no inflammatory cells), score 1 (mild inflammation; few leukocyte infiltration), score 2 (moderate inflammation; moderate leukocyte infiltration), and score 3 (marked inflammation; large numbers of inflammatory cells).