3l6 CLINICAL VETERINARY MEDICINE AND SURGERY. 



was swollen and indurated. On examining the nasal cavity the swell- 

 ing was seen to be limited to the anterior portion, that is the part 

 corresponding to the cartilaginous plate. The skin covering this, and 

 a narrow layer of the pituitary membrane, were swollen, thickened, 

 and somewhat prominent. At the margin between the middle and 

 upper thirds of the upper wing of the nostril appeared a fungous, 

 reddish, soft mass of granulations, from which pus discharged when 

 the lower part of the swollen nostril was pressed with the finger. 

 The left submaxillary gland contained a somewhat hard swelling the 

 size of a small nut, moveable under the skin, but adherent to the 

 deeper seated tissues. In the right nasal cavity the pituitary mem- 

 brane was neither swollen nor injected, and the internal wing of the 

 nostril was of normal flexibility. 



Having cast the animal on the right side probing revealed the 

 presence under the granulations of an open sinus about one and a 

 quarter inches in depth, running obliquely downwards and inwards. 

 This sinus was laid open throughout its entire extent, and the walls 

 swabbed with tincture of iodine, by means of a probe covered with 

 wadding. 



The patient, which continued to work, was only dressed very 

 irregularly. In consequence it became necessary to expose the parts a 

 second time. The swelling of the nostril and suppuration greatly 

 diminished, but recovery was not complete until after four months. 



Remarks. — Necrosis of the nasal cartilage marked by muco-purulent 

 discharge and enlargement of the submaxillary gland of the correspond- 

 ing side, may at first awaken suspicion of glanders. Differential 

 diagnosis, however, is easy without recourse to mallein. On examining 

 the nasal cavity the inner wing of the nostril shows a hard, circum- 

 scribed swelling, which usually occupies the entire extent of the wing ; 

 and a fistula, whence on pressure over the swollen area greyish, ill- 

 formed pus, sometimes streaked with blood, escapes. The swollen 

 parts are often rough, prominent, or folded. Fig. 27 shows the 

 appearances in a case brought for examination during September last 

 as suspected of glanders. The inner wing of the right nostril showed 

 throughout its entire extent a considerable, sharply circumscribed, 

 rounded swelling, most extensive below, where it was irregular and 

 exhibited several narrow folds. From its posterior border projected a 

 mass of soft, bleeding granulations, which masked the sinuous tract. 



SEBACEOUS CYSTS IN THE FALSE NOSTRILS. 



17. A seven-year-old mare, left in hospital ist February, 1898. 



Was suffering from sebaceous cysts of the false nostrils, which first 

 appeared several years before. By their progressive growth these 

 tumours had finally interfered with breathing ; the mare soon lost 

 breath, and made a snorting noise during work. In September, 1897, 

 the swellings were punctured, their contents evacuated, and the interior 

 washed with an antiseptic solution, but they soon formed again. 



On entering hospital this mare showed in each false nostril, an inch 

 or two from the external opening of the nose, a spherical, yielding. 



