SEROUS CYST NEAR THE WITHERS. 337 



Serous Cyst near the Withers. 



Sometimes pressure by one of the points of the tree of the saddle 

 against the upper end of the shoulder blade, causes a serous cyst 

 to form about four inches below the top of the withers and on one 



_^,^v^-^"' 



Fig. 138.— Capped elbow. 



side of the withers. We may distinguish it from a collection of pus 

 by the fact that although it is fluctuating to the touch, it is much 

 deeper seated than an abscess which not unfrequently forms near 



22 



