Imaging diagnosis--equine mast cell tumor.

Area of Science:

• Veterinary Oncology
• Equine Surgery

Background:

• Mast cell tumors (MCTs) are common skin neoplasms in horses, typically presenting as benign, solitary masses.
• These growths are frequently found on the head, neck, trunk, or limbs, often near joints but not invading them.

Observation:

• Radiographs of equine mast cell tumors commonly reveal well-circumscribed soft tissue masses with granular mineralization.
• The Arabian breed shows a higher prevalence of these tumors.
• The case presented involves mast cell tumors specifically located in the rear limb of a horse.

Findings:

• Diagnosis of equine mast cell tumors relies on clinical presentation and radiographic findings.
• Surgical excision is the primary and usually curative treatment modality.
• This report details the diagnostic process, clinical characteristics, and successful management of limb-based MCTs in a horse.

Implications:

• Understanding the typical presentation and breed predisposition aids in early diagnosis.
• Effective surgical management ensures a positive prognosis for affected horses.
• This case contributes to the veterinary literature on equine mast cell tumor management, particularly in the limb.