TUMORS. 



A THOEOUGH description of tumors with tiie different varieties 

 and forms cannot be discussed here as explicitly as the author 

 would like, and he therefore will confine himself to such tumors 

 as are met with in general practice, and for farther details would 

 direct the reader to books on general pathology and morbid anat- 

 omy. The following tumors have been found in the dog: 



Tumors of the Connective Tissue. 



Soft and Hard Fibroma. A soft fibroma consists of connective 

 tissue containing bloodvessels and cavities. These are filled with 

 a serous or mucous fluid. They are generally found lying in the 

 skin, and form round, soft, inelastic bodies, not especially circum- 

 scribed, flabby in consistency, and generally with a broad base. A 

 hard fibroma consists of a very firm body made up of closely united 

 fibrinous tissue, and forms rounded or oblong, distinctly circum- 

 scribed hard tumors, which originate, as a rule, in the skin or 

 subcutis. 



Fibromas belong to the class called " mild tumors," and are 

 easily removed. 



Lipoma (Fatty Tumor). A lipoma is formed exactly like nor- 

 mal fatty tissue, but possesses larger fat cells. It is also flabby and 

 soft, but no fluctuation is present. As a rule, it is very distinctly 

 circumscribed, being separated from the neighboring tissues by a 

 layer of connective tissue. Very rarely do we find it diffused in 

 different directions. As a rule, it is found in the dog around the 

 synovial folds of the joints, in tendons and their sheaths, as well 

 as in the internal organs. 



Lipomas occur in the lower cellular cutaneous tissue, and, as a 

 rule, can be easily removed by an operation. After the removal 

 of fatty tumors which had not been distinctly circumscribed the 

 author saw several recurrences of the tumors; also septic inflam- 

 mation in the neighboring tissues as a result of the wound. 



Bnchondroma {Cartilaginous Tumor). Enchondroma consists 



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