104 MANUAL OF EQUINE MEDICINE. 



MUSCULAR RHEUMATISM.— The muscles and their 

 thecjB are Hable to a pamful affection, which is due to the 

 same causes as other forms of rheumatic inflammation, wet 

 and cold, damp, fatigue. The muscles most commonly- 

 involved in the horse are the lumbar and gluteal muscles, 

 and also those of the neck, chest, and shoulder. Generally 

 there is but little constitutional disturbance, though febrile 

 symptoms may be manifested. Especially is this the case 

 when the large lumbar and gluteal muscles are involved, 

 when the pulse is accelerated. The temperature is elevated, 

 and the animal moves with difficulty. The back is elevated, 

 and the affected muscles are painful and tender. 



Treatment. — Internally, the same drugs may be pre- 

 scribed as in acute articular rheumatism, and, in addition, 

 potassium bromide is a valuable remedy. In the chronic 

 forms tonics are very beneficial. Locally, anodyne and 

 stimulating liniments of camphor, belladonna, opium, 

 aconite, with ammonia and turpentine afford much relief 



SCROFULA AND TUBERCULOSIS. 



Tuberculosis. — Is an infective disease, characterized by the 

 formation of small nodular masses, called ' tubercles,' and is 

 due to the presence and multiplication of the Bacillus Tuber- 

 culosis in the blood and tissues. The lesions are more or 

 less generally distributed, as in acute general tuberculosis, or 

 they are limited to small areas, as in local tuberculosis. 

 Tubercles are of two kinds, grey and yellow. 



Grey, or * miliary' tubercles, or ' grey granulations,' are 

 greyish semi-translucent rounded bodies, varying from 

 minute points to the size of a pin-head, or larger. Yellow 

 tubercles are later stages of the grey variety. They are 

 generally larger, and may reach the size of a chestnut, or 

 even larger, and they are softer. 



