Fibroepithelial sinonasal polyp

Discussion:

The patient had the left nasal polyp/lesion biopsied.

Histology

MICROSCOPIC DESCRIPTION: Sections show non keratinizing stratified squamous mucosa with underlying stroma. There is mild spongiosis, scattered intraepithelial neutrophils and reactive atypia. The stroma contains a mixed acute and chronic inflammatory cell infiltrate. There is no evidence of dysplasia or malignancy. A PAS stain is negative for fungal micro-organisms.

FINAL DIAGNOSIS: Fibroepithelial polyp with acute inflammation.

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