96 Surgical Diseases and Surgery of the Dog 



Symptoms and Diagnosis. The chief symptom is sudden suf- 

 iocation with as sudden recovery. Fits of vomiting may be pro- 

 voked particularly when pressure is applied over the pharynx. 



Treatment. Removal should be effected by means of the wire 

 ecraseur. 



Epithelioma. Malignant tumor of the Pharynx, while very rare, 

 is occasionally observed in aged animals. It is apt to exist some time 

 before being discovered, long enough for metastasis to the cervical 

 glands to take place. 



Symptoms and Diagnosis. The appetite is very indifferent, and 

 the animal has difficulty in swallowing, and a fetid salivation de- 

 velops. Examination of the buccal cavity reveals the presence of a 

 raw ulcer. This ulcer must not be mistaken for a fistula pro- 

 ceeding from some foreign body which has found lodgment in the 

 subjacent tissues. The animal progressively emaciates and finally 

 the cervical glands become involved. 



Treatment. There is no treatment for this disease. 



BIBLIOGRAPHY. 



Dierix — Cited by Cad^ac in Patb. dee. Anim. Domest. 

 Moeller — Lebrb. d. spec. Chir. f. Thleraerzt. 



The Esophagus 



EXAMINATION. 



The esophagus is examined by palpation over its course on the 

 left side of the neck, by passage of the probang, and by means of 

 the Roentgen rays. 



CONGENITAL MALFORMATIONS. 



Ectasia has been observed by Cadeac, and Stricture by Smith. 



TRAUMATIC LESIONS. 



Rupture and Perforation. These lesions are ordinarily caused 

 by bones and foreign bodies owing to the extraordinary peristalsis 

 or violent fits of retching engendered by their presence. Abscess 

 formation invariably results. When the thoracic portion of the or- 

 gan is pierced, purulent pleuritis results with fatal issue. Siedam- 

 grotzky recorded an instance of this kind where the perforating body 



