Tongue, Mucosa - Fibroepithelial Polyp

Tongue, Mucosa - Fibroepithelial polyp in a male B6C3F1 mouse from a chronic study. There is a small polypoid mass at the lateral margin of the tongue (arrow).
Figure 1 of 2
comment:
Benign polypoid lesions consisting of a nodular growth of well-differentiated squamous, sometimes hyperplastic, epithelium supported by fibrous stroma occasionally occur in rodents. These lesions are continuous with the tongue mucosa, although the attachment site is often not in the plane of section ( Figure 1

recommendation:
Whenever present, fibroepithelial polyps should be diagnosed but not graded. Any associated inflammation, if present, should not be diagnosed separately unless it is unusually severe and extends into the tongue itself. Any mineralization should not be diagnosed separately.references:
Web page last updated on: November 24, 2014