102 PBINCIPLE3 OF YETERINAEY SUEGEKY 



sues, and operate aseptically, which is practicable by reasoa 

 of the ease with which it can and should be executed in all 

 neurectomies but deep peroneal. 



Vascular Tumor — Angeioma. 



What are angeiomata 9 



Tumors composed of blood vessels. 



What forms of angeiomata are recognised ? 



(1) The simple angeioma (angeioma simplex); it is com' 

 posed of anastomosing vessels, enlarged and tortuous capil- 

 laries ; (3) the cavernous angeioma (angeioma cavernosum), 

 which consists of thin-walled spaces or even vessels contain- 

 ing blood ; their construction resembles the corpus caver- 

 nosum of the penis, the blood flows into the space from arter- 

 ies and is received by veins ; the lymphangeioma, composed 

 of dilated lymph vessels. 



Describe the angeioma. 



They resemble a cyst, are of bluish or purple color, have 

 a more or less wide base, are compressible and may pulsate. 



Which forms are seen in animals ? 



In the erectile tissues of the nasal mucous membrane of 

 the horse the simple, and especially the cavernous, angeioma, 

 giving rise to dyspnoea, is met with. They have also been 

 observed in the conjunctiva, lips and gums. In the mammary 

 gland of a cat a lymphangeioma has been reported. On the 

 whole, they arq not often observed. 



To what secondary changes are angeiomata liable ? 



Ulceration leading to more or less hemorrhage, purulent 

 nasal discharge, creating suspicion of glanders. 



