A PAPER ON THE FORM AND SIZE OF THE ADULT 

 ANTRUM, AND ON THE DIAGNOSIS AND TREATMENT 

 OF INFLAMMATION OF THE LINING MEMBRANE, 



Was read hy W. A. N. Cattlin, F.E.C.S. Eng. 



Since the time of Galen, the Maxillary Sinus 

 has attracted the particular attention of surgeons, 

 on account of the many serious maladies to which 

 it is liable. Highmore described the antrum as 

 " conical and somewhat oblong," and wrote a 

 Latin treatise upon its diseases. He also illus- 

 trated the shape of the cavity by plates (Figs. 1,2). 



Fig. 2 

 Fig. 1. ^ ' 



Shape of Antrum copied from Shape of Antrum, copied from 



Highmore, half size. Highmore, half size. 



He refers to the operation of tapping, which he 

 appears to have practised for the relief of accu- 

 mulated fluid. Holden, one of the best of modern 

 authors, more correctly compares it to "a trian- 

 gular pyramid, with the base towards the nose, 

 and the apex towards the malar bone," and refers 

 to " thin plates of bone which are often found 



