554 Veterinary Medicine. 



cases it has obstructed tlie biliary duct by pressure and entailed 

 hepatic disorder and jaundice. 



The treatment would not differ from that of the larger animals. 



vSiedamgrotzky has al.so observed splenic hypertrophy in the 

 cat in connection with leucocythaeniia. 



SPLIvNITIS. PERISPLENITIS. 



Causes: extension from adjacent inflammations, penetrating bodies, con- 

 tusions, lacerations, infections, over exertion, cold, damp, over feeding. 

 .Symptoms : those of primary disease, visible traumas, chill, fever, swelling, 

 flatness of percussion sound, absence of crepitation, anorexia, vomiting, 

 constipation, diarrhcea. Prognosis usually good. Treatment: castor oil. 

 enemata, cold douche, electricity, phlebotomy, in infective cases quinine, 

 salol, sahcylates, iodides. 



No accurate border line can be drawn between splenic hyper- 

 semia and hypertrophy on the one hand and inflammation of the 

 spleen on the other. It is, however, not difficult to assign to in- 

 flammatory action all cases that tend to suppuration and abscess. 

 Also in perisplenitis with adhesions to adjacent parts like the 

 liver, .stomach, intestine, kidney or abdominal wall inflammation 

 cannot be doubted. 



Causes. Extension from the disease of adjacent parts — peri- 

 hepatitis, perinephritis, peritonitis, er.teritis — is a distinctly 

 appreciable cause, as are also penetration of the .spleen b}^ foreign 

 bodies, contusions, lacerations and infections of the organ. 

 Cruzel, who claims an extensive acquaintance with the disease in 

 working oxen, attributes many cases to violent exertions, over- 

 driving, cold and damp weather, and an overstimulating alimen- 

 tation. x\s inflammation may supervene on hyperaemia and 

 hypertrophy we must accept the various causes of these condi- 

 tions as factors in producing inflammation. 



Symptoms. Most observations of inflammation of the spleen 

 and its results have been made only post-mortem, so that we must 

 allow that the simple forms occur and undergo resolution without 

 obvious symptoms. In the perisplenitis supervening on another 

 disease al.so in infective cases there will be the antecedent symp- 



