Which lesion is most characteristic of blackleg caused by Clostridium chauvoei in cattle?
Correct answer: A. Emphysematous necrotizing myositis
- A. Emphysematous necrotizing myositis
- B. Diffuse fibrous hepatitis
- C. Caseous lymphadenitis
- D. Granulomatous nephritis
Explanation
Blackleg causes acute necrotizing myositis with gas production, giving affected muscles a dark, dry, and crackling appearance. The other lesions are associated with different infectious or inflammatory diseases.
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Covers the causes and mechanisms of disease, cellular injury, inflammation, healing, circulatory disturbances, neoplasia and disorders of major organs. It also includes gross and microscopic pathological changes, specimen interpretation and the distinction between aetiology, pathogenesis, clinical signs and lesions.
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