NEOPLASMS IN THE DOG'S UVER. 



Lipoma. Trasbot describes two fatty tumors in the liver of a 

 bitch, one of them as large as an infant's head. It had a 

 yellowish white color, and had taken the place of the proper 

 hepatic tissue. 



Maligna )it Tumors. These are rather connnon. Sarcomatous 

 masses with round and fusiform cells in a fibrous stroma ; 

 enccphaloid with a delicate stroma and large alveoli filled with 

 cells, and having a soft brainlike consistency ; carcinoma with 

 dense and thick fibrous stroma and nests of cells in comparatively 

 small numbers ; and epithelioma with flattened, cylindroid or 

 other epithelial cells in masses often affecting a tubular aggrega- 

 tion, are seen in different cases. Sometimes apparently primary, 

 they can more commonly be traced to preexisting centres of the 

 same formation on the course of the portal vein or elsewhere. 



Syynpto^ns . A gradual wasting and emaciation with a yellow- 

 ish pallor of the mucous membranes are characteristic. Trasbot 

 gives the excessive atrophy of the temporal and masseter muscles 

 as pathognomonic. A.scites is a usual complication. Enlargment 

 of the liver, as shown b}' percussion of the right hypochondrium, 

 and, in case of flaccid abdomen, b\^ manipulation, and attendant 

 signs of tenderness are corroborative. Variability or less of 

 appetite, and vomiting is not uncommon, and in case of primary 

 or secondary deposits in other organs in the abdomen, thorax or 

 elsewhere, the symptoms resulting from functional derangement 

 of such organ may be found. Treatment is hopeless. 



533 



