Strangles, Infectious Rhino-adenitis. 117 



Circumscribed phlegmonous exudates and small abscesses are 

 sometimes found in the mouth (tongue, soft palate, cheeks) and 

 less frequently in the oesophagus. 



The stomach may show congestions, petechiae, circumscribed 

 haemorrhages, ulcers, and abscesses of the gland tissue or sub- 

 mucosa. Rupture of the walls may follow abscess (Cadeac).- 



The intestines may show congestions, colorless or hsemorrhagic 

 exudate, and suppurations in the agminated or solitary glands, 

 or submucosa. The intestinal, mesenteric and sublumbar lymph 

 glands may be the centres of abscesses of varying sizes. 



Abscesses may also be found in the liver, pancreas, or spleen, 

 of variable size and usually as secondary formations. 



The muscles and intermuscular tissue may be the seat of more 

 or less extensive exudation, or abscess, and the bones may be 

 congested and swollen especially in their epiphyses. This may 

 extend to suppuration or necrosis. 



The synovial membranes of joints and the tendinous sheaths 

 are not infrequently inflamed, causing distension and even suppu- 

 ration. 



Congestions of the skin are sometimes met with, developing as 

 multiple papules or hard nodules which advance to the formation 

 of pustules or small abscesses. These often appear especially 

 where the skin is thin and delicate as around the lips, nose and 

 eyes, close to the anus or vulva, in the perineum, sheath or mam- 

 mae, inside the thighs or elbow. They may be of all dimensions 

 from a millet seed upward, and may merge into or become com- 

 plicated by the extensive engorgements of petechial fever. 



Finally, lesions of the nerve centres are to be looked for in the 

 protracted or irregular types of the disease. There may be simple 

 congestion, or serous effusion, intraventricular or subarachnoid, 

 or finally abscess in the brain, spinal cord or meninges. 



Forms of Strangles. The types of strangles vary, special forms 

 characterizing given epizootics or seasons, or at other times as 

 individual deviations from the current type. Division has been 

 made into two groups — mild and malignant, or again into^ regular 

 and irregular, under each of which come several varieties. Many 

 of these varieties consist simply in a difference in the seat of the 

 principle lesions, which start in lymph glands or tissues at a dis- 

 tance from the nasal mucosa, or they depend on secondary foci of 

 infection supervening on the primary disease in the head. 



