THE TUMORS OF THE SINUSES. 
255 
three last superior molars. In two months these were all 
covered, the wounds granulated well, and the animal returned 
to its work. The tumor was a myxo-sarcoma. It did not 
return. 
The facts that I have observed make me consider sarcomas 
of the mucous membrane of the sinuses as quite rare. And yet 
we meet them now and then. Some of you may remember a 
case brought to one of our clinics last year which I ordered 
destroyed on account of sarcoma of the superior maxillary and 
of the sinuses. When this patient came to us, he had on the 
left side of the face a hard tumor, diffused, almost painless and 
without complications of the lymphatic glands. He had a muco¬ 
purulent discharge of the left nostril. Examination of the 
mouth revealed a raising of the mucous membrane along both 
edo-es of the molar arches. The animal was worn out and killed 
for the butchery. The autopsy revealed that the sinuses of the 
left side were partly filled by the tumor. 
There is another frequent and extremely serious form of 
tumors of the sinuses. I refer to epitheliomas. 
Among the published observations, you may read with in¬ 
terest those of Trasbot, Barrier and Benoit. They are almost all 
alike. The history of a few patients that I have seen at our 
clinics will give you an exact idea of the characters and gravity 
of these tumors. 
Towards the end of last year, a gelding, ten years old, was 
shown to us ; he had been bought a few days before. He ate 
slowly, the cheek was tumefied and the owner thought his teeth 
were sharp and needed filing. The general state of the horse 
was fair, yet there was a certain amount of dullness and of appar¬ 
ent suffering. The attention was specially attracted by long 
threads of saliva flowing from his mouth, which, when carefully 
examined, revealed the nature of the affection, which was very 
different from that suspected by the owner. There was a large 
tumor in the buccal cavity, grown on the palatine arch, along¬ 
side the left molar arch. It was protruding slightly under the 
mucous membrane, which allowed us to define its anterior 
