Peer-reviewed veterinary case report
A retrospective study of salivary gland diseases in 179 dogs (2010–2018)
- Journal:
- Journal of Veterinary Diagnostic Investigation
- Year:
- 2020
- Authors:
- D. Lieske & D. Rissi
- 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 was more likely to be affected. The most common reason for the biopsies was swelling in the area of the salivary glands, with most cases involving the larger salivary glands outside the mouth. The main findings included inflammation of the salivary glands in nearly half of the cases, tumors in about 20%, and some other less common conditions. Overall, the study highlights a variety of salivary gland issues in dogs, with many cases being serious, particularly those involving 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://www.semanticscholar.org/paper/32687011