THE TUMORS OF THE SINUSES. 
257 
it interiorly, projecting between the turbinated and coming 
downwards. Examination of the mouth showed, on the palatine 
arch, alongside the right molar arch, a reddish granulating sur¬ 
face, which, towards the middle of the cavity, occupied nearly 
half of the palatine arch. The gingivo-labial fissure was partially 
filled with granulations and putrified food. A reflector placed 
between the dental arch and the cheek revealed that the teeth 
were loose in their destroyed alveolar cavities. You see how 
extensive the lesions were and vet the swelling of the face was 
relatively small. A diagnosis of incurable tumor of the maxillary 
was made. The microscopical examination of a portion of the 
neoplasm, taken from the palatine arch, near the second molar, 
confirmed the diagnosis. It was a tubulated epithelioma . The 
animal was sold for the butcher, and we obtained his head to 
examine its condition. The tumor had destroyed almost the 
entire structure of the superior great maxillary, the anterior part 
of the palatine and a portion of the turbinated. It filled the 
middle and a portion of the superior third of the nasal cavities 
as well as both maxillary sinuses. The third and fourth 
molars were completely loose, the second, fifth and sixth 
were scarcely attached in their alveola. The glandular lesions 
were very characteristic ; their characters under the knife were 
those of the tumor. 
Eet us now consider the case before us. 
Upon a gelding, Anglo-Norman, twelve years old, some six 
months ago, there appeared on the left superior maxillary a 
swelling, which gradually became more marked. A veterinarian 
called to see it, considered it a traumatic lesion and prescribed 
some treatment, which gave no result. The swelling kept on 
growing, mastication became difficult, from the left nostril and 
from the mouth came a very foetid odor. The animal was 
brought here. What called the attention at first was the asym¬ 
metry of the face. The muscles of the face were atrophied ; 
the mass of the masseter, originally somewhat prominent, was 
entirely gone, the cheek appeared excavated. On a level with 
the superior maxillary, between the zygomatic process and the 
