Tongue - Squamous Cyst

Tongue - Squamous cyst in a male F344/N rat from a subchronic study. A cyst filled with keratin (arrow) is present in the tongue.
Figure 1 of 2
comment:
Squamous cysts ( Figure 1

recommendation:
Squamous cysts should be diagnosed but not graded unless the incidence is treatment related.references:
Bertram TA, Markovits JE, Juliana MM. 1996. Non-proliferative lesions of the alimentary canal in rats GI-1. In: Guides for Toxicologic Pathology. STP/ARP/AFIP, Washington, DC, 1-16. Full Text: https://www.toxpath.org/docs/SSNDC/GINonproliferativeRat.pdf
Web page last updated on: November 24, 2014