24 CLINICAL VETERINARY MEDICINE AND SURGERY. 



able extent, impeding respiration and producing a loud roaring sound, 

 or even death by asphyxia. M. Trasbot has published a curious case 

 of this nature. He had to treat a mare which for six months had 

 suffered from intermittent muco-purulent discharge from the left 

 nostril, sometimes streaked with blood. Tumour of the sinuses was 

 suspected. The discharge grew more and more abundant, the sub- 

 maxillary glands became swollen, and the animal roared loudly during 

 work. Further examination revealed nothing, either in the forward 

 portion of the cavities or in the mouth. The roaring sound became 

 more intense ; finally it was produced when at rest in the stable. 

 Swallowing was interfered with, and the saliva escaped by the mouth. 

 One morning this animal was found dead in its box. Post-mortem 

 examination explained these peculiar symptoms. The tumour, which 

 arose from the ethmoid, was formed of two perfectly distinct parts : 

 one partially filled the frontal sinus without becoming in any way 

 adherent to its walls ; the other, extending along the anterior turbi- 

 nated bone within the nasal cavity, had developed very extensively, 

 passing beyond the guttural opening of the nasal meati, traversing 

 the pharynx, and latterly arriving at the larynx, its extremity had at 

 last accidentally entered the latter and had doubtless excited spasm, 

 followed by death. On histological examination this tumour prcved 

 to be a myxoma. Considering the narrow base from which it 

 originated on the ethmoid, excision would have been easy had the 

 growth been early discovered. 



M. Labat described a case of polypus of the sinuses, successfully 

 treated by ablation, in an eight-year-old horse. The superior maxillary 

 and frontal sinuses of the left side were the seat of a polypoid tumour, 

 which had deformed the surrounding hard tissues. From the bone 

 covering the superior maxillary sinus, a triangular piece, two and three 

 quarters by three and a half by four inches in size, was removed. The 

 tumour, which was attached to the roof of this cavity, was entirely 

 removed. At the end of two months the opening in the bone was 

 reduced to two thirds of its former size, but did not entirely fill up. 

 Many practitioners have also operated with success on fibromata and 

 myxomata of the sinuses. 



The cases I have collected lead me to regard sarcomata of the 

 sinuses as rather rare, nevertheless cases are seen from time to time. 

 A number of you, without doubt, remember a horse whose case formed 

 the subject of a clinical lecture last year, and the slaughter of which I 

 recommended on account of sarcoma of the superior maxillary bone 

 and of the sinuses. When brought here this horse showed, on the left 



