564 Veteri?iary Medicine. 



amount may vary with the size of the goitre. In cases of 

 moderate size ^ dr. to i dr. is suitable. Tliere is usually some 

 resulting inflammation, which may be met by a wet compress 

 around the throat. A second and third injection may be made 

 if necessary, when the effects of the preceding one have passed 

 off. In simple forms it is very successful. For dogs Moller 

 recommends from 5 to 15 drops of undiluted tincture of iodine 

 at an injection. In other cases he used a watery solution of 

 papain ( i : 10) to be left in for 48 hours. The thyroid was then 

 soft and, on incision, discharged its digested parenchyma as a 

 milky fluid, and favorable healing followed. 



The removal of the diseased lobe has been successfull}' ac- 

 complished in horses, the reservation of the other lobe, or even of 

 the connecting commissure, being sufficient to prevent the occur- 

 rence of tetany. From the extreme vascularity of the organ it is 

 important to ligature the arteries before attempting the removal. 



In the other domestic animals in which the commissure is prac- 

 tically obliterated and the two lobes confluent in goitre, the ex- 

 cision of the ma.ss is liable to be followed by tetan3^ dropsy 

 (myxoedema), stunted development, anaemia or marasmus. If a 

 portion of the gland is left these results do not follow. Grafting 

 of a portion of healthy gland may correct the tetany. The hyper- 

 trophy of the gland may sometimes be arrested by ligature of its 

 nutrient arteries, and without the dangers above named. This 

 may be combined with the internal and external use of iodine. 



EXOPHTHALMIC GOITRE. 



Definition. A complex disorder manifested hy hypertrophy of 

 of the thyroid, excessive bulging of the eye balls out of the orbits, 

 cardiac palpitations or tardy heart action and other nervous or 

 trophic disorders. 



Cadiot records a case in a horse, in low condition, with painful 

 cedematous swelling of one fore foot, and swellings in other parts 

 of the body, great enlargement of the left lobe of the thyroid, 

 tumultuous heart action with beats 70 to 80 per minute, and 

 strong visible pulsations in the superficial arteries. There was 



