INFECTIVE I.YMPHANGITIS. TRAUMATIC 

 LYMPHANGITIS. 



Infection varied, through -wounds, autogenous. Simple irritation, sim- 

 ple lymphangitis. Causes, sun's rays, bruises, other injuries, lymph co- 

 agulation from heat, cold, chemical irritants, and coagulants. Germs in 

 blood act on debilitated tissues, lymphatic constitutions, anaemia, over- 

 worked or starved. Insect bites, claws, teeth of carnivora, foul instruments, 

 fingers or clothes. Bloodless wounds dangerous. Distal parts of the limbs 

 exposed. Fresh wound exposed, granulating less so. Most microbes enter 

 by the lymphatics. Symptoips, extension from wound, swollen lym- 

 phatics, reticular lymphangitis, tubular lymphangitis, farcy, tuberculous 

 case, slough. Fever variable. General infection. Joint infection. Chronic 

 cases. Lesions. Diagnosis, from phlebitis. Treatment, antiseptics, diet, 

 eliminants, antithermics, blisters, mercurial ointment, iodine, lancing, 

 tonics, massage, bandage. 



Under this heading must be named not one specific disease but 

 a group of infections entering by the lymphatic vessels and de- 

 veloping inflammation of their substance. They may be divided 

 into two classes : those caused by infection through external 

 wounds and those in which the poison already in the system 

 becomes localized on a weak or exposed tissue. 



A third class must be included, in which there is no recogniza- 

 ble poison but simply a local irritation which leads to coagulation 

 or other alteration in the lymph, or disease of the lymphatic 

 vessels. 



This subject belongs rather to surgery than medicine but it 

 seems necessary to contrast it here with the plethoric form of 

 equine lymphangitis. Most of its forms pertain to infectious 

 diseases and will be treated in connection with these. 



Causes of Simple Lymphangitis. Formerly many forms of 

 lymphangitis were ascribed to mere local irritation ; a superficial 

 form will occur from exposure to the rays of the sun, and an in- 

 flammation attendant on a bruise or other injury with unbroken 

 skin, may cause local inflammation of the lymph vessels and en- 

 largement of the adjacent lymph glands. As we have seen above, 

 coagulation of the lymph and fibrine embolism may induce local 

 inflammation in the walls, and this may occur in connection with 

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