DISEASES OF THE SUBCUTIS 301 



What are the causes of inflammation of the mucous mem- 

 branes ? 

 In regard to the etiology and varieties of tte inflamma- 

 tory processes of the mncons membranes the same points hold 

 good which have been considered under "Inflammation of 

 the Skin." 



How do you treat the surgical diseases of the mucous mem- 

 branes ? 

 The treatment may be an operative one or the application 

 of antiseptics and astringents is indicated. 



DISEASES OF THE SUBCXTTIS. 

 Edema. 



What is edema 9 



A dropsy or serous infiltration of the subcutaneous con- 

 nective'tissue. 

 What varieties of edema are of surgical interest ? 



Inflammatory edema, passive or stasis edema. 

 What is an inflammatory edema ? 



A serous inflammation of the cutis and subcutis due to 

 infectious, toxic, thermic or traumatic agents. In other 

 words, an infectious, thermic, traumatic or toxic agent pro- 

 duces an inflammation of the cutis and subcutis; as a result of 

 this inflammation a serous exudate forms ; this exudate infil- 

 trates the lymph spaces of the cutis and subcutis and the con- 

 ditionknown as inflammatory edema is present. 



What is collateral edema ? 



An inflammatory edema of any cutis and subcutis imme- 



