DISEASES OF THE MUCOUS BUESA 239 



Describe the hygroma of the olecranium bursa. 



This condition, commonly called shoe boil, represents a 

 globular, cirenmscribed, painless, bard, more or less pendu- 

 lous mass at tbe point of tbe elbow. It is very common in the 

 horse and is also seen in the larger breed of dogs. 



Describe the hygroma of the calcanian bursa: 



This is represented by a somewhat elastic, painless, cir- 

 cumscribed, globular swelling at the point of the os calcis, 

 ^nd may possibly be confounded with other pathological 

 products peculiar to this part. 



How can you differentiate the calcanian hygroma from patho- 

 logical states simulating it ? 



A discussion of this subject does not belong to a work 

 on general surgery (look up Mohler's " Special Surgery " for 

 that purpose). 



Outline the treatment of bursal hygroma. 



The practically fibrous mass of an olecranian hygroma 

 is either ligated en masse or allowed to drop off, of course 

 employing proper antiseptic measures at the same time. This 

 form of treatment is not very desirable. Very large ones, 

 "when a removal is required, are best excised, while those as 

 large aS two fists can be puckered up to almost nothing by 

 puncturing them with the thermocautery as described under 

 "Outline the treatment of purulent bursitis." 



Inflaunuation of the Muscles (Myositis). 



Depending on the cause, what forms of myositis are recog- 

 nised ? 

 Rheumatic, traumatic, infectious and parasitic. 



