Figure 5.

Hematoxylin and eosin staining. (a) Magnifying glass image and (b) 200× magnification. The cyst displays fibrous walls with squamous metaplasia of the ciliated pseudostratified epithelium due to chronic inflammation (red arrow).

Hematoxylin and eosin staining. (a) Magnifying glass image and (b) 200× magnification. The cyst displays fibrous walls with squamous metaplasia of the ciliated pseudostratified epithelium due to chronic inflammation (red arrow).