1 16 Surgical Diseases and Surgery of the Dog 



NEOPLASMS. 



The trachea and larynx are occasionally the seat of single or 

 multiple papillomata. Cadiot and Almy and Mouguet have seen 

 instances. Tubercles also occur as a manifestation of pulmonary or 

 generalized tuberculosis. 



Symptoms and Diagnosis. According to the authorities just 

 noted, dyspnea and violent fits of coughing are prominent symptoms 

 of papilloma. 



Treatment. When the growth is situated in the larynx removal 

 by means of a snare is indicated. 



FRACTURE OF THE TRACHEA. 



This lesion was seen and described by Walley. The trachea had 

 sustained a complete transverse fracture which was supposed to 

 have been caused by violent traction. There was a space of an inch 

 between the severed ends. The first symptom noticed was a slight 

 tumefaction of the tissues round the throat. This was followed by 

 emphysema of the neck, chest, and one side of the body, which 

 increased in the neck at each expiration. An attempt at relief was 

 made by incising and stitching the edges of the aperture to the 

 skin above and below, but the animal died soon after from pulmon- 

 ary congestion and emphysema of the mediastinal connective tissue. 



That it is possible to treat this lesion successfully if attended 

 to in time would seem to be the case in view of the experiments of 

 Mesnard and Gluck and Zeller which are quoted below. 



Suf gety of the Trachea. 



Gluck and Zeller divided and reunited the trachea experimental- 

 ly with good results. The division was made between the third and 

 fourth rings. Both sections were at first sewn into the skin wound, 

 eight to ten stitches being sufficient for each. Some days later 

 the cut extremities of both sections were brought into apposition 

 and sutured and the animal recovered the use of its voice. These 

 experimenters also practiced extirpation of the larynx. Mesnard 

 also removed two, three, and five rings from different dogs and 

 sutured the cut ends with catgut. Reunion was complete in ten 

 days. 



