Survey of equine cutaneous neoplasia in the Pacific Northwest.
Abstract: A retrospective study examined data regarding equine cutaneous and mucocutaneous neoplasms submitted to the Veterinary Diagnostic Laboratory at Oregon State University in a 3.5-year period. A total of 536 neoplasms were identified, accounting for 30% of the total equine pathology submissions. Sarcoid, squamous cell carcinoma, melanocytic tumors, papillomas, and mast cell tumors were the most common neoplasms, constituting 87.5% of all cutaneous neoplasms. Sarcoids represented 51.4% of all neoplasms and 15.18% of total equine accessions. Sarcoid was most common in paints, quarter horses, and Arabians, and was the only common tumor in donkeys and mules. Mean age at diagnosis of equine sarcoid was 9 years. Squamous cell carcinoma constituted 18.3% of all neoplasms and 5.41% of total equine accessions. Ocular squamous cell carcinoma was most common in paints and quarter horses, and penile/preputial squamous cell carcinoma was most common in appaloosas and quarter horses. The mean age of horses with ocular squamous cell carcinoma (13 years) and squamous cell carcinoma of the skin (15 years) was significantly less (P < 0.5) than that of horses with squamous cell carcinoma of the penis and prepuce (21 years) or vulva, anal, and perianal skin (19 years). Findings suggest that equine sarcoid and squamous cell carcinoma occur more frequently in the Pacific Northwest than in the northeastern United States.
Publication Date: 2006-03-29 PubMed ID: 16566271DOI: 10.1177/104063870601800121Google Scholar: Lookup
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- Journal Article
Summary
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The research paper examines the occurrence of skin and mucous membrane tumors in horses in the Pacific Northwest, with the common types being Sarcoid, Squamous cell carcinoma, melanocytic tumors, papillomas, and mast cell tumors, as recorded over a 3.5 years period at the Veterinary Diagnostic Laboratory at Oregon State University.
Methodology and Data Collection
- The research was conducted retrospectively, examining past records and submissions to the Veterinary Diagnostic Laboratory at Oregon State University.
- They analysed data over a period of three and a half years, focusing on the pathology submissions related to equine cutaneous (skin) and mucocutaneous (mucous membrane and skin) neoplasms or tumors.
- A total of 536 neoplasms were identified, making up 30% of the total equine pathology submissions over the period.
Findings
- The most frequently found tumors were Sarcoids constituting approximately 51.4% of all identified neoplasms and 15.18% of the total equine accessions.
- This was followed by Squamous cell carcinoma making up 18.3% of all neoplasms and 5.41% of all equine pathology submissions.
- Other prevalent tumors included melanocytic tumors, papillomas, and mast cell tumors. Together with the Sarcoids and Squamous cell carcinoma, these made up 87.5% of the identified skin neoplasms.
- Sarcoids were most common in Paints, Quarter horses, and Arabians and were the only common tumor found in Donkeys and Mules. The average age at diagnosis was nine years.
- Ocular Squamous cell carcinoma was most frequently found in Paints and Quarter horses. On the other hand, penile/preputial Squamous cell carcinoma was most common in Appaloosas and Quarter horses.
- The mean age of horses with ocular Squamous cell carcinoma and Squamous cell carcinoma of the skin was statistically significantly lower than those with Squamous cell carcinoma of the penis and prepuce or of the vulva, anal, and perianal skin.
Conclusions
- The findings suggest that the occurrence of equine Sarcoid and Squamous cell carcinoma is higher in the Pacific Northwest as compared to the northeastern United States.
- Further, certain breeds of horses (like Paints, Quarter horses, and Arabians) and mules/ donkeys presented specific vulnerability to certain types of neoplasms.
- Age was also seen to be an important factor, with specific types of cancer more common in certain age groups.
Cite This Article
APA
Valentine BA.
(2006).
Survey of equine cutaneous neoplasia in the Pacific Northwest.
J Vet Diagn Invest, 18(1), 123-126.
https://doi.org/10.1177/104063870601800121 Publication
Researcher Affiliations
- Veterinary Diagnostic Laboratory and Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis 97331, USA.
MeSH Terms
- Animals
- Carcinoma, Squamous Cell / epidemiology
- Carcinoma, Squamous Cell / veterinary
- Horse Diseases / epidemiology
- Horses
- Incidence
- Melanoma / epidemiology
- Melanoma / veterinary
- Nevus, Pigmented / epidemiology
- Nevus, Pigmented / veterinary
- Northwestern United States / epidemiology
- Papilloma / epidemiology
- Papilloma / veterinary
- Retrospective Studies
- Skin Neoplasms / epidemiology
- Skin Neoplasms / veterinary
Citations
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