DISEASED PROSTATE IN THE DOG. 



395 



of Mr. Turner, Mr. Clarke shaved the perinseum and abdomen, washed 

 them thoroughly with soap and hot water and then with ether, covered 

 the abdomen with a towel wrung out in a weak solution of bichloride 

 of mercury, with a slit cut in the towel corresponding to the proposed 

 incision in the skin ; sterilised cotton wool for sponges, instruments, 

 and ligatures were placed in warm saturated boric solution, and an 

 irrigator with a rose and tap was filled with boiled water and suspended 

 above the table. Having given ether, the above-described perinaeal 

 section was first performed ; the abdomen was then opened, but as 

 soon as the parts were exposed it was evident that operative interfer- 

 ence was out of the question, and the dog was therefore killed with 

 chloroform. 



Post-mortem. — A drawing of the parts is given. The prostate was 

 much enlarged, being about the size of a billiard ball. In the anterior 

 part was a calcified nodule as large as a small walnut, and of stony 



Fig. 43. — Prostate of dog. Section of a calcified portion of tumour. x about 65. 

 I. Fibroid tissue. 2. Imperfectly developed bone. 



hardness, and from this point a new growth had invaded the pelvic 

 tissues, forming firm and extensive adhesions. On section the substance 

 of the prostate contained several cysts with semi-purulent contents ; 

 the termination of the left ureter was involved and completely oblite- 

 rated in a mass of new growth of cartilaginous consistence ; the ureter 

 was dilated to the size of a man's middle finger, filled with fluid, and 

 very thin. The left kidney was destitute of secreting structure, which 

 had been absorbed ; it was considerably dilated, and formed a sac filled 

 with fluid, and with walls scarcely thicker than those of the bladder. 

 The right kidney was hypertrophied, weighing more than four ounces. 

 The bladder was thickened, but the mucous membrane was normal ; 

 the dog w^as fat, and all the other organs were perfectly healthy. Micro- 

 scopically the tumour presented a great variety of structural changes. 



