Sialolithiasis
A sialolith is a calcified stone within the salivary ducts. The sialolith is formed of an organic nucleus, surrounded by concentric layers of calcium phosphate crystals.
Pathogenesis
An ascending foreign body, such as a grass awn, is normally the cause of the formation of a single sialolith within a salivary duct. In small animals, calcification of inspissated saliva in salivary mucoceles may also result in the formation of multiple small sialoliths.
A single, large sialolith in a salivary duct can cause some retention of saliva, however it is not thought to cause a salivary mucocele.
Clinical Signs & Treatment
A sialolith present clinically as a palpable elongated swelling over the affected salivary duct.
The treatment involves surgical removal of the sialolith.
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Veterinary Dentistry Q&A 08 |
References
Verstraete, F. J. M. (1998) Self-Assessment Colour Review - Veterinary Dentistry Manson