LAMENESS IN THE HIND LEG 



211 



an apparently perfect state of health, ready to fall with another 

 attack of precisely the same kind, a.s soon as enough exercise is 

 forced upon it. The rectal explorations may reveal a pulseless 

 state of one or more of the iliac arteries and a hardness and 

 enlargement of the aortic quadrifurcation, but sometimes this 

 palpation fails to disclose any perceptihle diminution of the blood 

 current of these vessels. The obturation being incomplete, it 

 may be impossible by palpation to decide that thrombosis really 



Fig. I'.t— lllu.strativf 

 by Dr. L. A. Merillat. 



ii' Ihi' aorta, iliacs and branches. Photo 



exists. In this event and, in fact, in all eases, the clinical sjanj)- 

 toms are sufficiently characteristic to make a diagnosis without 

 reservation. It cannot be mistaken for any other disease, once 

 properly investigated. Any given seizure may easily be mis- 

 taken for azoturia, at first, but a better examination soon ex- 

 cludes that disease. 



Prognosis and Treatment. — In the majority of instances, 

 when there is occasioned serious inconvenience, the outcome is 

 not likely to be favorable, according to Moller. Detachment of 

 a portion of the thrombus, according to Hoare, may result in 

 the lodgment of an embolus in the brain or kidneys. The latter 

 authority also states that muscular atrophy may occur owing to 

 lack of blood supply in some of these cases. Moller states that 



