Infective Lymphangitis. Traumatic Lymphangitis. 547 



gocytosis as do the numerous moving cells of the blood. Hence 

 a number of infectious maladies are primarily and preeminently 

 diseases of the lymphatics, as glanders, strangles, tuberculosis, 

 cancer, anthrax, swineplague, etc. 



Symptoms. The most common form is where lymphangitis ex- 

 tends from some pre-existing wound — as pricked or suppurating 

 foot, fistula of foot, withers or poll, chafing of shoulder or back, 

 cracked heels, boil, sloughing bruise, etc. The swelling around 

 the sore or injury involves in fact the radical lymphatic plexus 

 in the connective tissue (reticular lymphangitis). When the 

 swelling extends and becomes more tense, with firm, painful 

 sinuous cords running out of it in different directions, and 

 especially toward the nearest lymphatic glands, and when these 

 glands are slightly swollen and tender, tubular lymphangitis is 

 diagnosed. No more striking example can be found than in 

 skin glanders (farcy). The rigid cords extend from the side of 

 the face, from the eye and nose down toward the submaxillary 

 glands and with more or less adjacent engorgement. Or on a 

 hind limb, or some portion of the trunk, a more or less turgid 

 swelling with one or more firm nodes (farcy buds) and painful, 

 tortuous cords running towards the lymph glands is very 

 characteristic. 



A tuberculous case may show an indolent, hard, comparatively 

 insensible cutaneous cord leading toward the jugular furrow, the 

 prescapular, precrural or inguinal glands, and at long intervals 

 softening, fluctuating, bursting and discharging a thick pus. In 

 a carcinoma there is the old, hard, nodular, and finally ulcerating 

 swelling from which the firm cords extend to the mass of steadily 

 enlarging lymphatic glands. 



A simpler form is where a bruise by the harness causes a hard, 

 thick, slough, embracing the entire thickness of the skin, from 

 which the firm corded lymphatics extend in different directions. 

 After the slow process of detachment, the local lymphangitis 

 usually subsides under simple cooling or antiseptic treatment. 



But the grade of such lymphangitis is as varied as the particu- 

 lar germ or combination of germs, present in the wound, and the 

 susceptibility of the animal attacked, and there will be high, 

 moderate or no fever, according to the severity of the case, and 

 in some cases purely local trouble and in others general infection 



