472 CLINICAL VETERINARY MEDICINE AND SURGERY. 



dysenter}'. In March a nasal discharge, sometimes streaked with blood, 

 appeared and continued until death. 



At the commencement of April an abscess developed on the left 

 side of the upper part of the neck. The wound left on puncture, 

 refused to heal, and finally became sinuous. A fortnight later another 

 abscess occurred on the opposite side, practically at the same level as 

 the first. It opened spontaneously and became sinuous. 



These sinuses, about one to one and a half inches in depth, 

 suppurated somewhat abundantly for two months. The skin sur- 

 rounding them was denuded of hair and separated from the subjacent 

 tissues. The whole of the laryngeal region became swollen and indu- 

 rated. 



At the commencement of July appetite was entirely lost, and 

 wasting made rapid progress. The patient died on the 17th July, 

 1894. The body was brought to the school. 



Autopsy. — Diffuse pulmonary tuberculosis wdth formation of nume- 

 rous cavernous spaces ; inflammation of the tracheo-bronchial glands ; 

 tuberculosis of the liver. 



The larynx and origin of the trachea were surrounded by a thick 

 layer of tissue resembling sarcoma, excavated by several tracts. 

 Sections through this tissue showed yellowish-grey tubercles and 

 several little purulent centres. There was no apparent tuberculous 

 lesion in the buccal, nasal, pharyngeal, or laryngeal mucous mem- 

 branes. 



Throughout the lower two thirds of the neck the lymphatic vessels 

 were affected on either side of the trachea, several enlargements, the 

 size of a haricot bean to that of a hazel-nut, being found. 



Pus from the fistulse contained numerous bacilli. 



170. A seven-year-old spaniel bitch, brought for examination on 

 the 6th April, 1895. Had been ill for three months previously. The 

 principal symptoms were loss of appetite, wasting, and gradually 

 advancing feebleness. About two months before the bitch had suffered 

 for a fortnight from cough, and from a greyish discharge from both 

 nostrils. 



State on Examination. — The patient was exceedingly emaciated, 

 feeble and dull, in fact, a characteristic example of advanced tuber- 

 culosis. Nothing abnormal could be detected on examining the 

 abdominal cavity. The right wall of the chest, however, behind the 

 shoulder showed an ovoid swelling, the longer axis of which was 

 vertical, covering four ribs and the corresponding intercostal spaces. 

 It was firm, and towards its periphery almost hard. Near the centre 

 was a narrow sinus discharging greyish pus, in which microscopical 

 examination detected tubercle bacilli. 



The animal was left for observation, and was killed on the 15th April. 



Autopsy. — Old-standing pulmonary tuberculosis with formation of 

 cavernous spaces. Tuberculosis of the pleura ; double parietal pleural 

 adhesions. On the right side the costal pleura was much thickened 

 and covered with vegetations. On incising it opposite the costal 

 abscess a somewhat extensive cavity was opened, the internal wall 



