we found that in the epithelium of graft the number of ciliated cells decreased and that there was ultrastructure evidence of cilial destruction , the goblet cells increased in number , there was a loss of strict polarity of the respiratory epithelium , subepithelial accumulations of cells of probable epithelial origin appeared , and there was a subepithelial accumulation of lymphocytes just beneath the basal lamina .
C0014609
epithelium
C0506994
goblet cells