CHRONIC INFLAMMATION AND NECROSIS OF POSTERIOR TURBINATED BONE. 317 



non-fluctuating, cool, painless swelling ; the right was rather larger 

 than the left and the size of a hen's egg. 



On the 2nd February, after washing and disinfecting the skin the 

 cysts were punctured with a trocar, giving exit to a greyish, thick, 

 granular material. The cavities were injected with pure tincture of 

 iodine, and after manipulation the excess of injected fluid was removed. 

 On the following days the parts showed inflammatory swelling, par- 

 ticularly on the left side. On the 15th February the left cyst had 

 almost completely disappeared, but the right had resumed its former 

 dimensions. Ablation was therefore decided on. 



On the i8th February the mare was cast on Daviau's table. The 

 parts having been prepared, two curved incisions were made enclosing 

 an elliptical piece of skin, three quarters of an inch wide at the centre, 

 which was removed, together with the w^all of the C3'st. The deep 

 portion of the latter had to be left, dissection being a delicate matter, 

 and the animal struggling violently. The interior was swabbed out 

 with a tampon saturated with 10 per cent, chloride of zinc solution. 

 The margins of the wound were brought together over a drainage-tube. 

 During the following days weak warm carbolic solution was injected. 



On the sixth day the drainage-tube was removed, and the parts 

 treated as an open wound. A week later complete healing had 

 occurred. 



CHRONIC INFLAMMATION AND NECROSIS OF THE POSTERIOR 

 (MAXILLARY) TURBINATED BONE. 



18. Four-year-old mare, sufl"ering from a tumour of the left nasal 

 cavity. 



History. — Seven or eight months ago the left side of the animal's 

 face showed a swelling, which gradually increased ; discharge occurred 

 from the left nostril ; some time later breathing became disturbed and 

 snoring, and during movement a loud nasal roaring sound was pro- 

 duced. 



M. Audebert, veterinary surgeon at Vailly (Cher), who diagnosed 

 the existence of a tumour in the left nasal cavity, sent the animal to 

 me on the 5th February, iSgg. 



State on Examination. — Animal moderately well nourished. The 

 left side of the face showed a diffuse, rather prominent, hard swelling, 

 slightly painful on percussion. From the left nostril a greyish, muco- 

 purulent discharge continually escaped. On examining the entrance 

 to the nostril nothing abnormal could be seen, but a short distance 

 within a swelling could be felt which appeared formed by the enlarged 

 maxillary turbinated bone. The submaxillary glands were slightly 

 swollen. Breathing w^as markedly embarrassed. At a walk the mare 

 made a loud roaring sound. 



Treatment. — Ablation of the tumour. On the gth Februar}' the 

 patient was cast on the right side. The parts having been prepared, 

 an incision an inch and a half in length was made over the left false 

 nostril in the angle formed by the nasal and premaxillary bones. A 

 portion of the swelling could then be examined with the finger, but 

 extraction by this orifice appeared impossible. 



