170 
.T. L. ROBERTSON. 
bolus of food, incessant discharge of saliva, intermittent repletion 
of the canal, above the obstacle, and in bovines the suspension of 
rumination and the occurrence of frequent attacks of tympanites. 
I ressure upon the veins will cause oedema of the anterior ex¬ 
tremities, and if the arterial vessels are implicated, producing in¬ 
terference with the cardiac circulation, which shows itself by vio¬ 
lent contractions and hypertrophy of the heart. 
When the pneumo-gastric has been compressed by the tumors, 
the heart commences to beat with intense rapidity. 
lhe spleen, liver and kidneys are so situated in the abdominal 
cavity of our large animals, that their exploration is almost im¬ 
possible. 1 robably on this account have cases of leucocythemia 
been overlooked by our associates in practice. 
Enlargement of the spleen so easily made out by percussion 
and palpation in the human subject, is often the lesion that will 
cause the medical man to think of leucocythemia. 
In one case in a horse reported by Leisering, the spleen 
weighed about 50 lbs., causing a considerable projection in the 
right hypochondrium, there was difficulty in the descent of the 
libs, and the enlarged spleen pressed on the diaphragm and caused 
intense dyspnoea. 
Intestinal Leucocythemia .—The symptoms that would lead us 
to suspect localization in the intestines, are besides the progres¬ 
sive cachexia, colics, constipation, diarrhoea, accompanied by 
hemorrhages from the stomach or intestines. 
The progress seems to be always towards a fatal termination, 
the organic changes never retrograde, they may remain stationary 
for a while, but eventually proceed to a fatal termination. 
The duration is variable, it may run through its course like a 
galloping consumption, carrying oft its victim inside of a month. 
In most cases it lasts five or six months. 
Death is not infrequently caused by the hemorrhages that 
take place, from the stomach, bowels, cerebral hemorrhages, &c., 
or the neoplasm may invade the .tissues and destroy their func¬ 
tional and organic usefulness, or asphyxia may result from the 
hypertrophy of the lymphatic glands. 
So far treatment has not been followed by any success. There 
have been no cases recorded of a cure of the diathesis. 
