XI4 Surgical Diseases and Surgery of the Dog 



FOREIGN BODIES. 



Foreign bodies and Pentastomes sometimes find lodgment in 

 the nares. Dieterichs recorded a case in which a long bristle of a 

 hog had penetrated the pituitary membrane. 



Symptoms and Diagnosis. Respiration is impeded, and there 

 may be epistaxis and fits of" sneezing, and later a muco-purulent dis- 

 charge. 



Treatment. The removal of a foreign body is extremely diffi- 

 cult when it is situated at any distance from the orifice. Agents 

 which induce sneezing and warm antiseptic injections are recom- 

 mended, and if this treatment fails, the nasal chamber should be tre- 

 phined and the body extracted or pushed forward out of the orifice. 



NEOPLASMS. 



Nasal tumors are not very common. When present, they are 

 usually found to be of myxomatous nature and polypoid in form. 

 These tumors may exhibit a tendency towards sarcomatous transfor- 

 mation. Polypoid fibromata are also seen. Chondroma, osteosar- 

 coma, and carcinoma occasionally occur, but usually as secondary 

 manifestation of a primary growth which has had its origin in 

 either the buccal mucosa or the maxillary bones and has invaded the 

 nasal passages. These malignant growths are recognized by the 

 upheaval, and eventually, perforation of the superior maxilla which 

 they produce. 



Symptoms and Diagnosis. Growths of any size interfere with 

 respiration. Malignant neoplasms give rise to purulent or hemorr- 

 hagic discharges, frequently of fetid character. They are painful 

 to manipulation. When of long standing, the facial bones become 

 distorted or necrotic. 



Treatment. Constitutional treatment of polypi has been suffi- 

 cient to cause their disappearance. Gohier verified this in an animal 

 he tried to poison with large doses of arsenious acid after having 

 given up an attempt at extirpation. When surgical measures are em- 

 ployed, the wire snare should be tried, but failing with this, it is 

 necessary, owing to the conformation of these parts, to make 

 an opening in the superior wall of the nasal passage with a trephine, 

 and extirpate the tumor through the same. It is usually futile to 

 attempt the removal of malignant growths. 



