Tumors in Trachea. 171 



This is especially true of infecting abscesses like those of stran- 

 gles. When the abscess has discharged into the trachea daily 

 washing out of the bronchia with a dilute (2 to 3 vol.) solution 

 of per-oxide of hydrogen will be indicated. 



TUMORS OF THE TRACHEA AND BRONCHI. 



Neoplasms are less common in the trachea than in the 

 pharynx or bronchia. Fleming (1859) records a case of two 

 poljrpi attached to the floor of the trachea in its lower third in 

 a horse and almost completely closing the lumen, with thicken- 

 ing and osseous degeneration of the adjacent tracheal rings. 

 The part was very tender, and exercise produced violent dysp- 

 noea with a loud blowing sound. After months of suffering the 

 animal died in a violent paroxysm following a drink of water. 

 The arytenoid muscles were atrophied, the trachea filled with 

 blood, and blocked by the polypi. 



Parker records a case in a mare, in which an elongated, ovoid 

 tumor, three inches long by over an inch in its short diameter, 

 hung by a loose pedicle from the lower wall of the right bron- 

 chus, an inch below the trachea. Habitually this had blocked 

 the right bronchus only, but when forced up by violent cough- 

 ing, it lodged across the trachea blocking both bronchi and 

 threatening suffocation. She died during the night from one of 

 these paroxysms. 



Jobert notes the case of a bull with a polypus as large as a 

 hen's egg, attached by a thick, rigid, short pedicle to the floor 

 of the trachea four inches in front of the lower end of that tube. 

 He had violent paroxysms of coughing and dyspnoea, occurring 

 at irregular intervals, and was butchered. 



Watson records the case of a horse with a tumor extending 

 through the tracheal walls, and bulging externally and inter- 

 nally, over an arc more than five inches in length. 



Siedamgrotzky quotes a case in the horse, of a colloid cyst 

 growing from the mucosa immediately beneath the cricoid carti- 

 lage. 



Gurlt and Gerlach respectively quote cases of polypi of the 

 tracheal mucosa in cattle. 



Cadiot describes two cases of polypi of the tracheal mucosa in 

 dogs. They had hurried, difficult and anxious, wheezing 



