CHAPTER XVII 



POST-MORTEM REPORT 

 I. Single Infections 



A. STREPTOMYCOSIS 



1. Atypical chronic streptomycosis in both posterior 

 quarters of the udder. 



Both posterior quarters were swollen and firm in con- 

 sistency. Both quarters presented the same lesions. The 

 incision was very dry. The entire lower portion of the cut 

 surface was even, grayish-yellow and very firm. The lobuli 

 in this region were small and without milk points. Yellow 

 cylinders of fibrin were expressed, and the milk-ducts and 

 cylinders were filled with yellow fibrin. The other areas 

 of the udder showed no lesions. 



In the fibrin a few small lancet-shaped Gram positive 

 cocci, arranged as diplococci, were observed ( streptococci ) . 



2. Atypical chronic streptomycosis of the left posterior 

 quarter with nodidar necrosis. 



Only the left half of the udder was autopsied. 



The left posterior quarter was moderately swollen and 

 firm in consistency. 



The incision in the quarter was somewhat dry. The 

 cut surface was even, yellowish-gray and very firm. The 

 lobuli in this region were very small and showed no milk 

 points. Yellow cylinders of fibrin were expressed. Whitish- 

 gray, round, convex, unaltered lobuli showing distinct milk 

 points were distributed here and there. In the posterior 

 inferior part there was a round cavity the size of a hen's 

 eg^ surrounded by a white, thick connective-tissue wall. 

 It contained yellowish-gray pus and also a grayish-yellow, 



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