Histopathological Studies on Parasitic Bronchitis in Korean Cattle |
Heung Shik Lee, Chang Hyeong Lim |
College of Agriculture, Seoul National University |
한우(韓牛)의 폐충증(肺蟲症)에 관(關)한 병리조직학적(病理組織學的) 연구(硏究) |
이흥식, 임창형 |
서울대학교 농과대학 |
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Abstract |
Pathological studies, on the lung of 27 cases of bovine parasitic bronchitis which were secured from abattoirs in Korea, were performed and discussed. The chief pathological findings were as follows. Grossly, the lungs were shown various degree of lobular consolidation, collapse and alveolar emphysema around the bronchi in which nematodes of Dictyocaulus viviparus were present. Emphysema and edema were observed in the interlobular septa. The lesions were encountered mostly in the caudal and ventral borders of the diaphragmatic lobes. In all the cased of parasitic bronchitis in which thickening of the visceral pleura and fibrinous deposition on the pleural surfaces were not seemed to be entirely due to the lungworm infection. Microscopically, bronchopneumonia, peribronchial and peribronchiolar lymphoid hyperplasia, lympho-reticular broncho-occlusive legion, and bleakthrough lesion were examined in the affected lungs. |
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