T1IE 
VETERINARIAN. 
VOL. XXXIV. 
No. 405. 
SEPTEMBER, 1861. 
Fourth Series. 
No. 81. 
Communications and Cases. 
ON ENLARGEMENT OF THE PLEXUS CHOROIDES. 
CASE OF SUDDEN DEATH OF A PONY. 
By R. H. Dyer, M.R.C.V.S., Waterford. 
The remarks of Assistant-Professor Varnell on Mr. Vick's 
case of “ enlargement of the plexus choroides" are so much 
appreciated by me, that I cannot help sending you a short 
history of a similar case, which occurred in my practice a few 
months since. 
A pony, thirty-three years old , was brought to my infirmary 
apparently labouring under congestion of the lungs; she had 
been in uninterrupted good health for many years; indeed, I 
never heard of her being ill, and I have seen her frequently 
for the last ten years or more. She had been driven a 
distance of twelve miles rather quickly, and on coming 
homewards, about midway she faltered in her pace, and gave 
up, being dead beat. With difficulty the proprietor, his 
assistant, and a few men, managed to literally push her into 
town—a distance of six miles. I was immediately summoned, 
and upon examination I concluded that the little sufferer had 
been overdriven. It was in vain to look for any particular 
symptom, as the powers of nature were well-nigh exhausted, 
indeed, they had almost ceased, as is generally the case on 
the approach of death. I administered some restoratives, 
but in a few hours the pony breathed her last. A post-mortem 
examination was made—not, however, by the wish of the 
owner, but for my own satisfaction ; it being my custom, if 
possible, to examine every animal dying under my treatment, and 
it almost invariably happens thatl observe something worthy of 
being recorded. After exploring the various cavities and their 
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