OZENA. 241 



The turbinated bones are situated one above the other, as 

 shown in the engraving. The outer surface of the superior 

 bone is placed in close relation to the inner surface of the nasal 

 bones, and to the frontal sinus J; It is wgon and within these 

 structures, we again state, that Ozena has its seat ; and it is 

 important to the reader that he should bear in mind the facts 

 we have detailed respectiag this, as he wiU find them of the 

 highest value with regard to the treatment of the malady. 



Diseases which mat be mistaken fob Ozena. — The 

 diseases which may be mistaken for Ozena are — Glanders, 

 Caries of the upper Molar Teeth of the upper jaws, Sinus 

 of the Palate, and Polypus of the Nose. 



In every case of Ozena, the teeth of the patient should be 

 examined with the most scrupulous care; and, if found dis- 

 eased, extracted forthwith. 



Inoculating an ass with a portion of matter from the 

 diseased patient was at one time regarded as a decisive test, 

 if the animal experimented upon became Glandered ; but the 

 experiments of Professor Spooner and others, have clearly 

 proved that this test is not conclusive. 



The existence of a Sinus of the Palate may be known by 

 examination of the mouth, and by the character of the dis- 

 charge. Is the discharge purulent, or is it mixed with small 

 particles of half-masticated food? Sometimes the discharge 

 arisiag from Caries of the Molar Teeth may also be of a similar 

 character ; whUe Polypus of the Nose may be determined either 

 by the presence of the morbid growth, or by the obstruction 

 which it causes to breathing within the affected nostril.* 



* For farther information with respect to the above diseases, the reader 

 is referred to the several articles in the present volume, which especially treat 

 upon these maladies. 



Q 



