186 ENTOZOA FOUND IN MAN. 



hard and cretaceous, or if its contents have become 

 atheromatous, the opening must be made of a larger 

 size. The discharge of the matter through the open- 

 ing might also be assisted by the injection of a full 

 stream of water into the cyst, or by suction with a 

 syringe. 



The second indication may be fulfilled by the 

 injection of various liquids, which possess an anti- 

 putrescent property. The decoction of barley, of 

 marsh-mallow, and of cinchona, warm water, wine, 

 alcohol diluted with water, chlorinated water, solution 

 of iodine, and bile, have been employed in different 

 cases. 



The injection of fluids supposed to be capable of 

 destroying the vesicular worms, and of promoting 

 the gradual contraction and cure of the cyst, by 

 modifying the nature of its internal surface, has also 

 been resorted to. The Hquids which have been 

 chiefly employed with this view are alcohol, bile, and 

 solutions containing iodine. 



The iodised injections have been used, after either 

 a simple puncture, or puncture and incision through 

 a cicatrix, or simple incision into the tumour. The 

 quantity of the injection would vary according to 

 the size of the cyst ; and it should be composed of 

 tincture of iodine and distilled water, in equal pro- 

 portions, to which might be advantageously added a 

 small quantity of iodide of potassium.^ The injection 

 should be allowed to remain in the cyst, which has, 



* In two successful cases, operated upon by M. Aran, the 

 injection consisted of about one ounce and a half of tincture of 

 iodine, the same amount of distilled water, aud thirty grains of 

 iodide of potassium. 



