Atrophic appearing squamous epithelium lines this pseudocyst, dilated by abundant keratinous debris. Note the lack of a granular layer in the epithelium.

Its only importance in the tonsil is for the pathologist not to mistake it for a well differentiated squamous cell carcinoma.

No treatment is usually necessary unless the cyst becomes infected and symptomatic.

Entirely benign.

• Salivary Gland : Lymphoepithelial Cyst