Abstract
The oral manifestations of systemic autoimmunity were investigated in a kinetic study of the MRL/1 mouse. Lesions in the epithelium, connective tissue and minor salivary glands were characterized in serial sections of the soft palate and the cheeks with respect to 1) the type of inflammatory cells present, 2) the presence and type of vasculitis, 3) the presence of necrosis, 4) the occurrence of deposits. By the age of 16 wk, 100% of our animals had developed mild to severe lesions in at least one compartment of the mucosa. Between 16 and 32 wk of age, pathologic manifestations affected the epithelial and subepithelial tissues, the striated muscle tissue, the vascular system and, much less frequently, the minor salivary gland network.
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