ioi6 



Veterinary Obstetrics 



Pyaemic arthritis is usually highly destructive to the affected 

 articulation. When the focus of infection is within the articu- 

 lation, the synovial membranes are found greatly thickened, 

 intensely injected, and frequently necrotic. The articular cavity 

 is usually distended with purulent synovia, as indicated at A A 

 Fig. 147. The infection spreads rapidly to the surrounding tis- 

 sues, causing extensive suppuration in the neighboring tendon 

 sheaths, like at C, and in the subcutaneous tissues at B. 



,B A A 



>' 



Fig. 14: 



OMPH.\I,0-PHI.EBrn.^ 



Sagittal section from carpus. Same case as Fig 146. 



A, A, Intra-articular abscess of carpal joint, communicating 

 with an extensive subcutaneous abscess, B, and posteriorly 

 with an empysemic cavity, C, in the vaginal .sheath of the 

 flexor tendons. 



The articular cartilage undergoes rapid destruction, as shown 

 at A and B, Fig. 148. In addition to the lesions already men- 

 tioned, there may occur septic inflammation of the pleura, inter- 

 muscular abscesses, opthalmia, leptomeningitis, catarrhal enteri- 

 tis, pneumonia, myocarditis, bronchitis, etc. 



Fig. 148. Omph.\lo-phlebitis. 



Cross section of Fig. 147, showing lower row 

 of carpal bones, seen from above. 

 A, B, Purulent destruction of articular cartilage. 



At the upper part of the illustration is seen the 

 pus cavity, B, of Fig. 147, in cross section. 



