Eosinophilic myositis in a slaughtered Korean native cattle

Area of Science:

• Veterinary Pathology
• Animal Science
• Muscle Biology

Background:

• Eosinophilic myositis is an inflammatory condition affecting skeletal muscle.
• Understanding its histopathological features is crucial for diagnosis in livestock.

Observation:

• The study presents histopathological findings in the carcass of a slaughtered Korean native cow.
• Lesions exhibited massive fibrous septae with vacuolar changes.

Findings:

• Hypercontraction and rupturing of muscle bundles were observed, with replacement by eosinophils.
• Necrosis and severe eosinophil infiltration were prominent features.
• Sarcoplasmic fragmentation, atrophy, and granuloma formation with calcified myofibers, macrophages, and multinucleated giant cells were evident.

Implications:

• These findings contribute to the understanding of eosinophilic myositis in Korean native cattle.
• The detailed histopathology aids in differentiating this condition from other myopathies.
• Provides a basis for future research into the etiology and treatment of eosinophilic myositis in cattle.