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Figure 2: (a) Photomicrograph showing a tumor composed of lobulated expansile masses of squamous cells with non-lamellated trichilemmal keratinization. Also seen are nests of tumor cells infiltrating the stroma (H and E, ×100) (b) Photomicrograph showing squamous cells with atypia and presence of few atypical mitoses (H and E, ×400) |
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