Peer-reviewed veterinary case report
A retrospective study of salivary gland diseases in 179 dogs (2010-2018).
- Journal:
- Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc
- Year:
- 2020
- Authors:
- Lieske, Danielle E & Rissi, Daniel R
- Affiliation:
- Department of Pathology (Lieske · United States
- Species:
- dog
Plain-English summary
This study looked at salivary gland diseases in 179 dogs that had biopsies taken between 2010 and 2018. The average age of these dogs was about 8.5 years, and there was no specific breed or sex that seemed more affected. The most common reason for taking a biopsy was swelling in the area of the salivary glands, which happened in nearly 60% of the cases. The majority of the issues were found in the larger salivary glands outside the mouth, with the most common diagnosis being a type of inflammation called nonspecific sialoadenitis, followed by tumors and other conditions. Overall, the study highlights that while salivary gland diseases are not very common in dogs, they can occur and often involve serious conditions like malignant tumors.
Abstract
Salivary gland diseases are well characterized in human medicine but are uncommonly reported in dogs. Herein we describe the clinical and pathologic features of 179 canine salivary gland biopsy submissions to the Athens Veterinary Diagnostic Laboratory from 2010 to 2018. The mean age of affected dogs was 8.5 y; no sex or breed predisposition was evident. The main reason for sample submission was regional swelling (107 cases; 59.7%). Extraoral (major) salivary glands were affected in 125 cases (69.8%), and oral (minor) salivary glands were affected in 43 cases (24% of cases). The location of the lesion (extraoral or oral) was not specified in 11 cases (6.1%). The diagnoses included nonspecific sialoadenitis (89 cases; 49.7%), normal salivary gland (42 cases; 23.4%), neoplasia (36 cases; 20.1%), salivary gland lipomatosis (7 cases; 3.9%), necrotizing sialometaplasia (4 cases; 2.2%), and traumatic hemorrhage (1 case; 0.5%). Most cases of sialoadenitis (63 cases), neoplasia (23 cases), and lipomatosis (5 cases), as well as all cases of necrotizing sialometaplasia and the only case of traumatic hemorrhage, affected extraoral glands. Most neoplasms (32 cases, 88.8% of the tumors) were epithelial and malignant, followed by round cell tumors (2 cases; 5.5%), a carcinosarcoma (1 case; 2.7%), and a tumor of undetermined histogenesis (1 case; 2.7%).
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/32687011/