Nose, Epithelium - Metaplasia, Squamous - Gallery

Nose, Respiratory epithelium - Metaplasia, Squamous in a male F344/N rat from a chronic study. The normal respiratory epithelium of the nasal septum has been replaced by squamous epithelium.

Nose, Respiratory epithelium - Metaplasia, Squamous in a female B6C3F1/N mouse from a chronic study. The nasal mucosa has been replaced by keratinized squamous epithelium. Image provided courtesy of Dr. R. Miller.

Nose, Respiratory epithelium - Metaplasia, Squamous in a male F344/N rat from a chronic study. A thickened layer of squamous epithelium lines both sides of the nasal septum.