Lymphadenoma. Hodgkiri's Disease. 385 



rectum, or in the small animals bj"^ external palpation, as may 

 also the enlarged spleen or liver. 



The adenoid hyperplasia in the chest offers very obscure and 

 uncertain symptoms. The enlarged bronchial and mediastinal 

 glands may seriously interfere with the functions of the vagus 

 nerve, causing, in cattle, disturbed digestion and rumination and 

 tympanies, in horses stertorous breathing, and in the carnivora 

 and omnivora a tendency to vomiting. In animals generally the 

 pressure on the cardiac nerves leads to great irritability of the 

 heart, and violent action under any exertion. The prominent 

 dyspnoea in the advanced stages may be explained by these 

 thoracic hyperplasise. 



Nocard claims that the urine furnishes most important indica- 

 tions in its low specific gravity (horse loio), its constant acidity, 

 and in the almost entire absence in that of the horse of hip- 

 puric acid. When there is any suspicion of tuberculosis or 

 glanders, the tuberculin or mallein test will decide. 



Treatment is essentially the same as in leukaemia, and equally 

 unsatisfactory. Arsenic has in the main given the best results. 

 In the very earliest stages when the granular hyperplasia is con- 

 fined to one group, excision is advisable. This should be 

 avoided in all cases in which the constitutional symptoms have 

 developed. Phosphorus and phosphide of zinc have seemed ben- 

 eficial in certain hands. Injections into the glands have so far 

 proved useless. 



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