Japanese Journal of Veterinary Research;Volume 6, Number 2

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AN OBSERVATION ON BOVINE MALIGNANT CATARRH IN JAPAN

FUJIMOTO, Yutaka;SATOH, Hiroshi;USHIJIMA, Jun-ichi;YAMASHITA, Seiryo

Permalink : http://hdl.handle.net/2115/1731
JaLCDOI : 10.14943/jjvr.6.2.93

Abstract

The authors made histopathological investigations of 2 cases of B.M.C. in Hokkaido in 1956. Histopathologically speaking, the main lesions were found to be located in the mucosa of the upper respiratory tract and digestive canal. Fibrinous necrotic inflammation was commonly observed, while ulceration and vesicle formation characterized lesions in these area. Ballooning degeneration was a feature of the stratified epithelial lesions and occasionally RUSSEL'S bodies were observed in the cytoplasm of epithelial cells. Marked non-suppurative meningo-encephalitis was noted in the central nervous system. Acidophilic cytoplasmic inclusions were found in the nerve cells of the vagoglossopharyngeal nucleus in the medulla oblongata in one of the two cases. But inclusions were not found in any other regions.

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