4 SACCULOUS DILATATION OF THE (ESOPHAGUS. 
J. Hood, Esq., of Uleham Hill, near Lincoln. I found the 
horse rather low in condition, though in apparent good 
health and spirits, but having an enlargement situated on 
the course of the trachea, about midway betwixt the breast 
and angle of the jaw, inclining considerably to the left side. 
It was about this substance my opinion was sought. I in 
the first place asked them to furnish me with a history of 
the case, which they did ; and this I will relate in the order 
in which it was given. 
About two years previous to this time, the horse was 
making up for Lincoln’s April fair. One morning he refused 
his food, and a swelling was observed upon his throat, which 
was very hot and tender to the touch. Inquiries being made 
of the groom, he replied, u yesterday, when out at exercise, 
the brute ran away with me, and galloped with all his force 
until he came into violent collision with a post and rail fence, 
his neck hitting the upper end of the post with more force 
than any other part.” I inquired if the skin or hair was 
injured. They replied in the negative. The horse was 
placed under what they deemed the best mode of treatment, 
but recovered very slowly, and lost so much of his condition 
that he was not saleable at that fair. During his recovery he 
occasionally coughed up blood and matter. He was, early in 
May, turned out for the summer, but did not regain his 
condition. Three months after, a small swelling was again 
perceptible in the same situation which is now occupied by a 
substance still larger. Blisters and setons for this were em- 
ployed at various times, but without success. The substance 
gradually increased until it reached its present size. 
The position of this enlargement I have already pointed 
out. I will now attempt to describe its form, and the pecu- 
liar and characteristic symptoms as they were observed by 
me on the day on which I first saw the animal. Its form at 
the base was a very irregular circle, having its longer axis 
parallel with the trachea, and measuring about eight inches : 
its shorter diameter across the trachea being about six inches. 
Its greatest elevation was about three inches, and was of an 
irregular pyramidal shape. It did not feel hard, and was 
uniform in its consistence. There was no fluctuation. It 
felt similar to any thick muscular part in a state of moderate 
relaxation. 
The history of the case, together with the present symp- 
toms, led me to think it must be some affection of a very 
serious nature. Its long standing, its position, (being chiefly 
on the near side,) the coughing up of blood and matter, the 
low condition of the animal, the gradual increase in the size 
