432 



CLINICAL VETERINARY MEDICINE AND SURGERY. 



chest. These were opened, and dressed with a i in looo solution of 

 Hydrarg. Perchlor. The animal remained in much the same condition 

 for the next few weeks, with the exception that its general health, which 

 had previously been excellent, was not quite so good. As, however, 

 signs of pyaemia began to manifest themselves, the case was considered 

 hopeless, and the animal was destroyed. The injury was proved to be 

 the result of a kick. 



Post-inoriem Appearances. — On dissecting out the scapula the bone 

 was found to be surrounded by large quantities of very offensive pus. 

 It appeared much larger than normal, and was encased in a sheath of 

 bony matter, the superior third being comparable to a dagger, the infe- 

 rior two thirds to the sheath. After boiling, the specimen was found 

 to be totally necrosed, the bone forming a sequestrum, with a space 

 filled with pus between it and the large mass of new bony tissue. 



Mr. A. Hodder's case, Veterinarian, 1896, p. 589. 



DISEASE OF THE SCAPULO-HUMERAL ARTICULATION— NECROSIS 

 OF THE ARTICULAR CARTILAGES. 



140. Clydesdale gelding, rising four years old. 



History. — Was broken to harness in June, 1897, and a month later 

 fell lame. The condition was diagnosed as "shoulder-slip" of the 

 right shoulder, the parts were blistered, and the animal rested. No 

 improvement occurred. Somewhat later abscesses formed in the scapular 

 region ; the first, at the dorsal angle of the scapula, burst and discharged 

 a large amount of pus. (There were no symptoms of strangles.) 



Fig. 51. 



Another formed behind the shoulder-joint, burst and discharged, healed 

 up, and again broke. Extremely severe typical shoulder-lameness per- 

 sisted. The entire shoulder region was diffusely swollen and enlarged, 

 and there was no perceptible atrophy of the shoulder muscles. The 

 animal was blistered and turned out to grass, but without improvement. 

 As recovery seemed very doubtful the animal was killed. 



Post-mortem Examination. — The subcutaneous fascia was found to be 

 much thickened, dense, and sclerosed. The muscles covering the 

 dorsum of the scapula were almost entirely fibrous throughout their 



