70 



CANINE AND FELINE SURGERY 



mammae, testes, liver, and lungs, and when once sarcoma 

 has been definitely diagnosed the practitioner may with 

 certainty give a prognosis that his patient has not very long 

 to live. Secondary growths are usual, and these may be very 

 numerous and of very large size (see Figs. 42 and 123). 



Adenoma. — This variety of tumour sometimes grows to 

 an enormous size in the tissues of the dog and cat, and is 

 frequently very malignant. When it contains sarcomatous 



Fig. 42. — Inoperable Sarcoma of the Neck.' 



elements it is then termed an adeno-sarcoma. It may be 



cystic and may occur in any situation of the body, but is 

 most commonly met with in the region of some glandular 

 structure, especially the mammary and anal glands. 



It is usually very vascular, and when operating there are 

 numerous large arteries and veins, which should be carefully 

 ligatured before being cut across. 



It has been discovered in the brain (see p. 100). 



1 For this photograph I am indebted to Professors Mettam and 

 Wooldridge. 



