Peer-reviewed veterinary case report
Most common oral tumors in dogs in Switzerland are fibroma
By Gasymova, Eva E et al.·Published in Journal of the American Veterinary Medical Association·2025·1Tierklinik Aarau West·View original on PubMed →
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Original publication title: A retrospective analysis of oral tumors in dogs in Switzerland identifies peripheral odontogenic fibroma and melanoma as the predominant tumor types.
- Species:
- dog
Plain-English summary
A study looked at oral tumors in dogs in Switzerland and found that most were benign, with the most common type being peripheral odontogenic fibroma. Malignant tumors, like melanoma, were also identified, particularly on the lips of older dogs, with an average age of 9.4 years. The research highlighted important differences between benign and malignant tumors, which can help veterinarians with early detection and treatment planning. Understanding these tumors can lead to better outcomes for affected dogs.
People also search for: dog oral tumors symptoms · melanoma in dogs treatment · peripheral odontogenic fibroma in dogs
Abstract
OBJECTIVE: Determine the prevalence, types, and geographical distribution of oral tumors in dogs in Switzerland to provide insights into demographics, tumor characteristics, and trends. METHODS: The medical and pathology records of dogs diagnosed with oral tumors from 2012 to 2022 were sourced from diagnostic laboratories in Switzerland. The focus was on histopathologically confirmed oral neoplasms. Inflammatory, viral, and cystic lesions were excluded. Geographic trends were analyzed by use of postal addresses, revealing local distributions. RESULTS: Of the 948 reports, 773 cases fulfilled the study's criteria. Benign tumors constituted 63% (487 of 773), with peripheral odontogenic fibroma being the most common (77.8% [379 of 487]). Among the malignant tumors, malignant melanoma was the most frequent (38.1% [109 of 286]), followed by squamous cell carcinoma (21% [60 of 286]) and fibrosarcoma (8% [23 of 286]). The locations of tumors varied, with a higher prevalence of malignant melanoma on the lips. Histopathologic findings indicated ulceration and necrosis were more common in malignant tumors. Significant differences were noted in the mitotic index between benign and malignant groups. No tumor predisposition was noted for any breed. Oral tumors were prevalent in older dogs (median age, 9.4 years). CONCLUSIONS: The findings highlighted the predominance of benign tumors in dogs in Switzerland, with specific histopathologic features distinguishing benign from malignant cases. CLINICAL RELEVANCE: Understanding the prevalence, types, and geographic distribution of oral tumors based on the representation in dogs in Switzerland may aid in early detection, appropriate diagnostic workup, and informed treatment planning for oral tumors in dogs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/39442534/