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Last September we organized a new workshop to describe lesions in condemned viscera of ruminants. In the next posts of this Quizz section we will present some of the cases that were discussed.
The first one is a lamb's lung were multiple grayish-colored lung lesions were observed, distributed mainly in the dorso-caudal part of the diaphragmatic lobe. (EV)
Lamb lung with multifocal, grayish lesions in the dorso-caudal part of the diaphragmatic lobe.
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Under the microscope the lesions correspond to a parasitic granulomatous pneumonia, also known as verminous pneumonia. The parasites that cause it can be varied and include Muellerius capillaris, Cystocaulus ocreatus, Dictiocaulus filaris, Protostrongylus rufescens and Neostrongylus linearis.
On the right of the image granulomatous lesion with the presence of parasitic larvae in the alveoli and bronchioles. On the left is an area of healthy lung parenchyma with hollow alveoli.
Detail of parasitic larvae and granulomatous inflammation.
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