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 Indian J Med Microbiol  
 

Figure 2: Histopathological features to oral lichen planus and carcinoma cuniculatum: (a) Parakeratotic stratified squamous epithelium, with formation of saw-tooth rete ridges and a dense band-like infiltrate of lymphocytes immediately subjacent to the epithelium with degeneration of the basal cell layer (H and E, ×400); (b and c) malignant epithelial neoplasia with endophytic proliferation with surface penetrates deeply into the underlying tissues, “rabbit burrows” B (H and E, ×100) C (H and E, ×200); (d) microabscesses and absent mitosis and cytological atypia (H and E, ×400)

Figure 2: Histopathological features to oral lichen planus and carcinoma cuniculatum: (a) Parakeratotic stratified squamous epithelium, with formation of saw-tooth rete ridges and a dense band-like infiltrate of lymphocytes immediately subjacent to the epithelium with degeneration of the basal cell layer (H and E, ×400); (b and c) malignant epithelial neoplasia with endophytic proliferation with surface penetrates deeply into the underlying tissues, “rabbit burrows” B (H and E, ×100) C (H and E, ×200); (d) microabscesses and absent mitosis and cytological atypia (H and E, ×400)