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In a cross-breed, 11 months old, calf carcass multiple, well-defined  areas in the skeletal muscle were observed  with a pale coloration throughout the body. It mainly affected the thighs, the fillets and the chest.

Extensive areas of paleness in the skeletal muscle.

The lesions are distributed throughout the carcass and are well circumscribed.

The hind limbs are particularly involved.


What is your diagnosis? (66)


The histopathological study revealed  lesions of eosinophilic myositis (inflammation of the muscle with presence of abundant eosinophilic polymorphonuclear leukocytes). Although in this case no parasitic structures were observed, this condition is associated with parasitization by Sarcocystis spp. The presence of eosinophils gives a greenish color to the lesions.
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Question 1
What is your diagnosis?
Lipomatosis muscularis
Zenker's hyaline degeneration
Eosinophilic myositis
White muscle disease
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