126 PEINOIPLES OP TETEEINABY SUBGEBY 



Describe the botryomycoma of the sTcin ? 



They are eitter solitary or multiple, from pea-sized 

 nodules up to man's-liead size, the largest ones being almost 

 always met with in the scapulo-humeral articulation and 

 about the elbow. The tumor is of firm consistency, but may 

 show soft portions here and there, with fistulous tracts 

 extending into its interior. It cuts quite hard, the knife 

 creaking as it passes through. The cut surface has a fibrous 

 appearance, and shows here and there little cavities filled with 

 a yellowish mucoid fluid and pockets filled with pus. 



What cutaneous regions are principally involved 9 



All parts exposed to harness pressure, elbow, point of 

 shoulder, tail, lips and fetlock. 



Does the shin botryomycoma confine itself to the shin only ? 



The larger tumors of this sort after .developing in the 

 skin invade the -deeper organs. , 



Describe the botryomycoma of the spermatic cord. 



This condition is commonly termed scirrhous cord or 

 champignon. At the time the animal is castrated, the castra- 

 tion wound becomes infected with the botryomyces and a 

 funiculitis botryomycotica is the consequence. It sets in by 

 not healing of the castration wound, which continues to 

 discharge pus. Now and then an acute cellulitis follows, 

 alarming the owner, who usually at this stage seeks profes- 

 sional advice. This cellulitis always sets in when the opening 

 through which the pas is discharged closes up, to disappear 

 as soon as a new perforation is established allowin'g the pus 

 to escape. This condition may persist for years without 

 leading to serious consequences. The spermatic cord as a 

 •whole, or only its distal end, shows a rather painless, hard 

 swelling. The vaginal process and the cord and surrounding 



