Surgery can be time consuming and invasive because ostectomy of the zygomatic arch is required. Despite the several modifications of this technique that have been described in recent decades, Several surgical approaches to the zygomatic gland have been described in the literature.Īll techniques involve a lateral approach and ostectomy of the zygomatic arch to gain better lateral orbital exposure and to facilitate gland dissection. Removal of the zygomatic gland is the treatment of choice in most conditions. The underlying cause of the glandular disease is mostly determined with cytological or histopathological examinations. The affected dogs may also exhibit papilledema and globe deformation, with or without associated blindness. ![]() Most canine salivary gland tumors are malignant, with the most common type being adenocarcinoma.Īmong all salivary glands, the zygomatic gland is the least frequently involved in glandular diseases.īecause of its ventral location within the orbit, the clinical signs of zygomatic gland disease vary but can include exophthalmia, protrusion of the nictitating membrane, orbital swelling, chemosis, and occasional pain when the mouth is opened or when hypersalivation occurs. That reviewed and categorized 160 canine salivary gland specimens that had undergone histological examination found that the most frequent pathologic findings were sialadenitis (28%), malignant neoplasia (26%), or sialocele (11%) 18% of the investigated glands had normal glandular tissue, 6% had salivary gland infarction, and 11% of the specimens had various degenerative or fibrotic lesions, ductal ectasia, sialolithiasis, edema, benign neoplasia, and secondary salivary involvement with systemic or cervical lymphosarcoma. Salivary gland diseases in dogs are rare and include sialadenitis, malignant neoplasia, and sialocele.
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