CLASSIFICATION OF DISEASES. 87 



somewhat swollen; mucous membranes of the stomach and bowels 

 are often inflamed. Capillaries are inflamed, and hemorrhages 

 often take place in the skin and mucous membranes, in the shape 

 of ecchymotic spots. 



What is the treatment ? 



The local treatment consists in the removal of the cause, if pos- 

 sible; the using of antiseptics in those putrid wounds, also remov- 

 ing those parts of the wound that are gangrenous, remembering to 

 keep the wound open. 



The constitutional treatment consists in good hygienic condi- 

 tions, good nourishing food, good air, etc.; internal antiseptics, 

 dilute acids, lime-water, stimulants (as whiskey), quinine, bromine, 

 strychnine, salicylic acid. 



PY^mA. 



Define pyaemia. 



It is a systemic disturbance, due to the absorption of septic 

 matter from a wound, and characterized by the formation of mul- 

 tiple foci of suppurative inflammation (metastatic abscesses), in 

 various parts of the body, and accompanied by certain systemic 

 symptoms. 



What is the aetiology? 



It is caused by pus microbes, just the same as septicsemia, but 

 they seem to be in groups and become lodged in various organs, 

 and set up foci of suppurative inflammation, and reproduce in 

 greater numbers. 



What is the morbid anatomy ? 



The blood is characterized by a tendency to coagulate spon- 

 taneously (wherever the blood-current is slow). Multitudes of micro- 

 cocci are found in the blood and on the walls of the vessels; venous 

 thrombosis and embolism are essential features of this disease. 



These emboli become lodged in the small arteries of different 

 organs, and lead to the formation of abscesses. ^letastatic ab- 

 scesses are found in the lungs, liver, spleen, muscles, kidneys, heart, 

 and brain. 



In a general way we may say that the blood becomes directly 

 affected by the veins, whereas, in septicaemia, it comes indirectly 

 through the lymphatics. 



