Abstract
Gross lesions are usually extrarespiratory and limited to mixed or serous salivary glands, exorbital glands, Harderian glands, periglandular connective tissue, cervical lymph nodes, and thymus. The submaxillary and parotid salivary glands are enlarged, pale, and edematous. Intermandibular and cervical connective tissue is gelatinous due to periglandular edema. This edema restricts the venous return in the neck, resulting in distention of the great veins entering the thoracic inlet. Exorbital glands are occasionally enlarged. Harderian glands are swollen and flecked with yellow-gray spots. These foci must be distinguished from normal brown-red mottling of the Harderian gland imparted by its normal content of porphyrin pigment. The cervical lymph nodes are enlarged and the thymus is atrophic. In these cases, ocular lesions may include corneal opacity, corneal ulcers, pannus, hypopyon, hyphema, and megaloglobus (Inner and Stanton 1961; Jacoby et al. 1975, 1979).
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© 1985 Springer-Verlag Berlin Heidelberg
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Brownstein, D.G. (1985). Sialodacryoadenitis Virus Infection, Upper Respiratory Tract, Rat. In: Jones, T.C., Mohr, U., Hunt, R.D. (eds) Respiratory System. Monographs on Pathology of Laboratory Animals. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-96846-4_13
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DOI: https://doi.org/10.1007/978-3-642-96846-4_13
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