Figure 5.

Immunohistochemical stainings of the transversely cut human ED with surrounding interstitial CT. L, lumen of the ED; CT, periductal connective tissue; V, vein of the vestibular aqueduct; and C, capillary. Cryostat sections were stained with (A) anti-human vimentin (arrows show positive epithelial cells), (B) anti-human CD31 endothelial cell, (C) anti-human fibroblast (clone 5B5), (D) anti-human fibroblast-specific AS02 (arrow shows negative epithelial cells), (E) anti-pan cytokeratin, and (F) anti-human macrophage CD68 antibodies (arrows show positive cells).