AUTOPSY 129 



manner the consistency may be soft and elastic, like India 

 rubber, when the vesicles are filled with water. If they are 

 filled with firmer substances as of pulpy consistency the cut 

 surface will be firm but friable. Upon application of 

 pressure to the diseased lobuli pus may be expressed from 

 the incised collecting ducts. If the milk points have dis- 

 appeared from a number of lobuli in a lactiferous udder it 

 indicates a diminution or suppression of milk secretion, 

 thus diminution of the volume or destruction of the tubuli. 

 One may find abnormal contents such as blood or pus in 

 the cisterns and milk-ducts. 



If the condition is extensive, radiating, transverse in- 

 cisions are made through the lesions down to the inferior 

 side. 



Post-mortem Diagnosis 



Upon external examination one may possibly observe 

 the presence of wounds or other perceptible lesions, such as 

 induration. 



UDDER-WOUNDS 



Infected wounds are important on post-mortem exam- 

 ination. 



The Post-mortem Diagnosis. — Infected wounds are 

 easily determined. The rule is that all open and moistened 

 wounds are infected. If it contains a yellow or grayish- 

 red or more or less thick pathologic fluid it may positively 

 be designated an infection. If the secretion stinks, gan- 

 grene has complicated the infection. 



A deep incision is made through the wound, so that the 

 surfaces may be separated and properly examined with the 

 eye. ( This incision is usually a transverse incision through 

 the udder.) 



If the walls of the woimd are red an acute infection is 

 indicated. This may be a simple streptomycosis, staphylo- 



9 



