MYXOID DEGENERATION 23 



"When the horse was brought in again the 'bunch' was 

 just as big as it had been before we tapped it and the 

 owner stated that it had filled up a few hours after he 

 took him home. 



"As we had 'brushed up' on the condition and its 

 treatment by this time we recommended incision of the 

 bunch, thorough curettement of the sinus and of the 

 edges of the frontal bone. This was refused. 



"We then prescribed painting the enlargement and 

 a considerable area around it with iodin, and iodid of 

 potassium internally. 



"After two weeks of this treatment the enlargement 

 has gone down considerably, but an interesting change 

 has occurred. There is now a discharge from both nos- 

 trils of a fluid the same color and consistency as that re- 

 moved with the trocar. Evidently the process has pro- 

 gressed and the sinus is now draining itself. 



' ' The gelding shows no ill effects in any other manner 

 and works every day. The owner has now consented to 

 submit him for operation at a later date. If he keeps his 

 promise we will report results. ' ' 



The owner did not keep his promise, and the case was 

 lost sight of. 



A few practitioners have reported similar cases in 

 younger horses. Curative treatment recommended con- 

 sists of complete removal of all the affected bone by 

 means of trephining, sawing and curetting. This is fol- 

 lowed by irrigation with suitable antiseptics for about 

 six weeks. 



The cause of this disease is unknown. In the early 

 stages, before the swelling is fluctuating in character, 

 the condition must be differentiated from osteoma, and 

 in some cases from catarrh of the frontal sinus which 

 has produced a prominent bulging of the frontal and 

 facial bones. The insertion of an exploratory trocar re- 



