NEOFURMATIONS OF THE LIVER AND GALLSTONES. 97 



Clinical Symptoms. Icteric symptoms, with frequent chills, 

 point to abscess of the liver. Treatment is useless. 



Patty Liver. 

 {Hepar Adiposum.) 



This is an abnormal diffuse fatty infiltration of the cells of the 

 liver. It is hard and seems anaemic when a section is made through 

 the organ. The cells are found to be filled with numerous fatty 

 drops. 



This condition is seen in old animals that have been fed well 

 and had little exercise, and is a natural fatty infiltration. It must, 

 however, be distinguished from the fatty degeneration that is found 

 to follow several poisons, and in the later stages of consumption. 

 In fatty infiltration the blood of the portal vein carries abnormal 

 quantities of fat into the liver which is deposited in the cells. In 

 fatty degeneration the fat originates in the cells themselves; this 

 is due to the albumin separating into two atoms. One contains 

 nitrogen, while in the other nitrogen is absent. This latter part 

 undergoes fatty degeneration. 



The treatment of fatty liver is the same as any adipose condi- 

 tion. 



Neoforniations of the Liver and Gallstones. 



The neoformations found in the liver of the dog are sarcomas, 

 carcinoma, and adenoma. These cause irregular enlargements on 

 the body of the liver, and produce symptoms similar to those of 

 cirrhosis of the liver. 



All treatment is useless. 



Gallstones are very rare in the dog; the only way that they 

 might be recognized would be the appearance of icterus, produced 

 by retention, with intense colic, which disappears in a short time. 



The following parasites have been found in the liver : Distoma 

 lanceolatum and distoma campanulatum. In the bile-ducts 

 Ercolani and Lissizin found a fully developed male strongylus 

 gigas in the liver of a young dog which had died of severe con- 

 vul.sions. 



