326 CLINICAL VETERINARY MEDICINE AND SURGERY. 



In a four-year-old watch-dog, which showed an ulcer about one and 

 a half inches in length near the centre of the upper lip with inflamma- 

 tion of a lymphatic gland in the neck, the base and margins of the 

 wound were hardened, and the microscopical characters of the lesion 

 were found to be as follows : — On section of a fragment removed from 

 the ulcer and cut perpendicularly to the surface no epithelial new 

 formation could be detected. At a certain point in these sections the 

 cells were necrotic and could not be stained with carmine, though cells 

 in the neighbouring (healthy) parts absorbed it readily. 



PAPILLARY SARCOMA OF THE CHEEK. 



29. Six-year-old entire horse, left in hospital on the 30th December, 

 1896. 



The disease first appeared as a kind of wart growing from behind 

 the left labial commissure. Other tumours soon appeared and covered 

 a considerable surface. 



State on Examination. — The tumour occupied the greater portion of 

 the cheek. It extended backwards from the commissure of the lips to 

 within about four inches of the ramus of the lower jaw, upwards as 

 high as the forehead, and downwards into the intermaxillary space. 

 According to the point inspected its thickness varied between three 

 quarters of an inch and two inches. It was sharply defined at its 

 periphery, where it met the healthy skin, and was formed of two dis- 

 tinct masses separated by a narrow depression running parallel to the 

 lower row of teeth, and somewhat obliquely from behind forwards and 

 downwards. The shape of both masses was irregular ; their surface 

 rounded and bleeding. The interspace was filled with foetid pus. The 

 submaxillary gland was slightly swollen, hard, insensitive, and adherent 

 to the deeper structures, but not to the skin. 



The sheath also showed warty growths, the largest the size of a 

 hen's egg. 



Treatment. — On the 31st December the horse was cast on Daviau's 

 table, the tumour removed with the knife, and the base carefully 

 curetted. Haemorrhage was checked by the cautery. 



On section the morbid tissue was greyish, firm, and contained little 

 fluid. Histologically it resembled fasciculated sarcoma. It was com- 

 posed of large fusiform cells containing one or several nuclei, and 

 grouped in bundles running in various directions. 



During the next few days the eschar became detached. The wound 

 was afterwards touched with dilute tincture of iodine and covered with 

 tannin. On the 12th January, when the animal left hospital, the greater 

 portion of the wound was healed. 



When seen again two months later the cicatrix was flat, and there 

 had been no return. 



FRACTURE OF THE LOWER JAW. 



30. Eight-month-old poodle, left in hospital i6th April, 1892. 

 Whilst playing in the stable it was kicked, and on being examined 



