258 LAMENESS OF THE HORSE 



peded to a marked degree. Horses running at pasture sometimes 

 become injured by trampling upon pieces of wood, causing one 

 end of these or of various implements to become embedded in the 

 soft earth and the other end to enter at the inguinal region and 

 even penetrate the tissues to and through the skin and fascia just 

 below the perineal region. 



Nail punctures resulting in infection frequently cause an in- 



Fig-. 61 — Chronic lymphangitis. Showing hypertropliy of the left hind leg, 

 due to repeated inflammation. 



fectious lymphangitis and a marked and painful swelling of the 

 legs supervenes. 



Symptomatology. — Lameness, mixed or swinging-leg, signal- 

 izes the presence of acute lymphangitis. There is always more 

 or less swelling present and manipulation of the affected parts 

 gives pain to the subject. Depending upon the character of the 

 infection and its extent, there is presented a varying degree of 

 constitutional disturbance. There may be a rise in temperature 

 of from two to five degrees, and in sucli instances tliere is an 

 accelerated pulse. Where nnich intoxiccition is present, anorexia 

 and dipsosis are to be noticed. 



