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Fig. 5 | BMC Oral Health

Fig. 5

From: Hawley retainer and lichenoid reaction: a rare case report

Fig. 5

a: Microscopic examination of the lesion at (× 200) showing lichen planus with subepithelial lymphocytic infiltration and basal cell degeneration (red arrow). b: Higher magnification at (× 400) of the previous photomicrograph revealing the basal cell degeneration (red arrows) and prominent nucleoli (black arrows). c: Higher magnification at (× 400) of the epithelium showing different dysplastic criteria basilar hyperplasia (red arrows), apoptotic nuclei (blue arrows) as well as hyperchromatism and pleomorphism. d: Another higher magnification at (× 400) of the epithelium showing drop shaped rete pegs. Loss of the basal cells and subepithelial lymphocytic band. e: Higher magnification at (× 400) confirming the Loss of the basal cells and the existence of subepithelial lymphocytic band

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