I 



CHAPTER XIV. 



Pathology of the Subepithelial Lymphatic Glands. 



In the preceding sections attention has been directed 

 upon- the Physiology of these Glands. In this and some 

 of the following pages the behaviour of these glands 

 in connection with disease will be studied to see how 

 far it support's the main thesis of this book. 



The grouping together of these glands derives great 

 support from the similarity of the diseases to which 

 they are liable. These diseases may be classified under 

 three headings : — 



1. Inflammation. (Chapter XV.). 



2. Simple enlargement. (Chapter XVI.). 



3. Other diseases. (Chapter XVII.). 



A separate section will be accorded to an account of 

 each of these. In addition, those morbid states in 

 which infection passes through the subepithelial 

 lymphatic glands, gaining an entry to the general 

 system without obvious injury to the doors it has 

 forced, must be dealt with (Chapter XVII.). 



A few general points bearing upon the connection 

 between infectious diseases and the subepithelial 

 lymphatic glands may be dealt with at once. Attention 

 has already been drawn (Chapter XI.) to the period of 

 greatest activity of these glands coinciding with the 

 period of childhood when the exanthemata and other 

 infectious diseases are most common. It is also to be 

 observed that the subepithelial lymphatic glands are 

 hyperactive or show definite inflamrnatory changes in 



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