CHAPTER X 
MORBID ANATOMY — 
Tue lesions which may be encountered upon post-mortem 
examination are-very numerous and varied, and. whilst 
in a few isolated cases little or nothing will be found 
commensurate with the severe conditions established, 
yet in many others such a combination of lesions will 
be discovered as to force one, perhaps, to wonder how 
the dog could have survived so long. Pathological 
changes are mostly confined to the respiratory and ali- 
mentary tracts, although other organs are by no means 
infrequently implicated in addition. 
Respiratory Lesions—Lungs.—In nearly all cases, the 
lungs are affected to greater or less degree, and the 
organs found to be darker in colour, consolidated in 
their lower third, two-thirds, or even zz foto, and exerting 
a resistance to the knife when cut into. One or both 
lungs may be implicated, and areas of congestion may 
be noticeable on their surface. Sometimes hemorrhagic 
spots are visible all over the organs; in other cases 
these are absent. 
Lobular pneumonia is the type usually occurring in cases 
of distemper, and the whole lung is rarely affected, the 
inflammatory foci being localised in small areas, which 
later may coalesce and extend over the inferior third or 
half of the lung. The diseased part is hard and firm to 
the touch, airless, dull red in colour, and rather more 
prominent than the adjacent sound tissue. Section of the 
part produces a frothy, sanious, or brownish-coloured 
thick exudate, especially if pressure is exerted. 
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