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Papilllary nature of the lesion

Papillary fronds are evident along the surface of the lesions.

There is no evidence of squamous dysplasia.

Neutrophils are present along with chronic inflammatory cells in the stroma and epithelium, and the latter shows marked hyperplasia.

The squamous proliferation also involves the underlying glands, which undergo prominent squamous metaplasia.

Last updated: 2009-08-25
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