Pulmonary lesions in Thai water buffaloes caused by immature fasciola species
1981
Ted Tesprateep
Fifteen nodular lesions of the lungs caused by Fasciola sp. from slaughtered buffaloes (swamp type) were macroscopically and microscopically studied. All lesions were irregularly distributed in diaphragmatic lobes. Mixture of dark brown pigments and visible flukebodies oozing out on cut surfaces was a prominent characteristic. The flukes, with no evidence of sexual organs, were relatively much smaller than those in the biliary system of the liver. Microscopically, those lesions were similar to active paratitic granuloma. The adjacent areas showed subacute to chronic bronchopneumonia with intra-alveolar organization in some alveoli. The properties of fluke pigments, with application of some histochemical stains, are like those of hemosiderin pigments.
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