Alimentary System

Oral Mucosa - Foreign Body

    Narrative
    Oral mucosa - Foreign body in a male F344/N rat from a chronic study. The foreign body (arrow) is surrounded by suppurative inflammation.
    Oral mucosa - Foreign body in a male F344/N rat from a chronic study (higher magnification of Figure 1). The foreign body (arrow) appears to be plant material.
    Oral mucosa - Foreign body in a male F344/N rat from a chronic study. A foreign body (arrow) associated with an ulcer in the hard palate.
    Oral mucosa - Foreign body in a male F344/N rat from a chronic study (higher magnification of Figure 3). The foreign body is surrounded by suppurative inflammation.
    Oral mucosa - Foreign body in a female F344/N rat from a chronic study. There is a foreign body adjacent to a tooth (asterisk).
    Oral mucosa - Foreign body in a female F344/N rat from a chronic study (higher magnification of Figure 5). The foreign body appears to be a hair shaft., basic_html
    Oral mucosa - Foreign body in a male B6C3F1 mouse from a chronic study. Multiple hair shafts and associated inflammation are present in the periodontal tissue.
    Oral mucosa - Foreign body in a male B6C3F1 mouse from a chronic study (higher magnification of Figure 7). Multiple hair shafts and associated inflammation are present in the periodontal tissue.

    Authors:

    Linda H. Kooistra, DVM, PhD, DACVP
    Pathologist
    Charles River Laboratories, Inc.
    Research Triangle Park, NC

    Abraham Nyska, DVM, Diplomate ECVP, Fellow IATP
    Expert in Toxicologic Pathology
    Visiting Full Professor of Pathology
    Sackler School of Medicine, Tel Aviv University Timrat Israel

    Reviewers:

    Joel R. Leininger, DVM, PhD
    Senior Pathologist
    MedImmune
    Washington, DC

    Amy Brix, DVM, PhD, DACVP
    Senior Pathologist
    Experimental Pathology Laboratories, Inc.
    Research Triangle Park, NC