554 Veterinary Medicine. 



cases it has obstructed the biliary duct by pressure and entailed 

 hepatic disorder and jaundice. 



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



Siedamgrotzky has also ob.served splenic hypertrophy in the 

 cat in connection with leucocythseniia. 



SPLENITIS. 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, diarrhoea. Prognosis usually good. Treatment : castor oil, 

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

 salol, salicylates, 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 adhe.sions 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, enteritis — is a distinctly 

 appreciable cause, as are also penetration of the spleen by foreign 

 bodies, contusions, lacerations and infections of the organ. 

 Cruzel, who claims an exten.sive acquaintance with the disease in 

 working oxen, attributes many ca.ses to violent exertions, over- 

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

 tation. As inflammation may supervene on hypersemia and 

 hypertrophy we mu.st 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 also in infective cases there will be the antecedent symp- 



