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Equine basal cell tumors: 6 cases (1985-1999)
N M Slovis1, M C McEntee, R A Fairley
1Veterinary Teaching Hospital, School of Veterinary Medicine, University of California, Davis, USA. NMSLOVIS@yahoo.com
Journal of Veterinary Internal Medicine
|February 24, 2001
Summary
Basal cell tumors in horses are rare, benign growths. Surgical removal proved curative in most cases, with no recurrence observed in follow-up periods.
Area of Science:
- Veterinary Oncology
- Equine Pathology
Background:
- Basal cell tumors (BCTs) are uncommon in horses, necessitating further characterization.
- Understanding the clinical presentation and outcomes of BCTs is crucial for equine practitioners.
Observation:
- A 15-year study identified 6 horses with BCTs, presenting as firm, raised masses (0.6-5 cm).
- Tumors were typically well-circumscribed and freely moveable; five of six were ulcerated.
- Affected horses ranged from 6 to 26 years old, with clinical identification preceding excision by weeks to years.
Findings:
- Grossly, tumors were initially diagnosed as sarcoids (5/6) or melanoma (1/6).
- Complete surgical excision was curative in 4 horses, with no recurrence noted between 4 months and 2 years post-surgery.
Implications:
- This study highlights the importance of accurate diagnosis and surgical management of basal cell tumors in horses.
- Complete excision appears to be an effective treatment strategy, offering a favorable prognosis for equine patients.