338 PRINCIPLES OF VETERINARY SURGERY 



gated ; dense and firm owing to its fibrous fasciculi as much 

 as its predecessor was loose and unresisting; and lastly, poor 

 in fiat cells, and even in atrophied ones, as much as the gran- 

 ulation tissue was living and richly cellular. In short to 

 sum up, in a word, the young and connective-vascular tissue 

 has been replaced by the tissue of sclerosis. 



Keloids. — From the microscopic point of view the keloid 

 is similar to the cicatrix, with the difiference that its blood- 



Fig. 32. 

 Keloid Resulting from Some Form of Firing. 



vessels are numerous. They are accompanied with embry- 

 onic ceils which are very probably the centers from which 

 the tumor extends. When they have a wide base, the 

 blood-vessels, the nerves and the tendons of the region are 

 drowned in a fibrous tissue which is the zone of attachment 

 of the neoplasm. This arrangement is well marked when 

 they are located in the flexion of the hock. It is evident th;it 

 their extirpation is not only inadvisable but actually impos- 



