PARALYSIS OF THE PENIS. 4I I 



growth. The scarified surfaces were several times rubbed with frag- 

 ments of the tumour, which had been kept in the incubator at 38° C. 

 The result was negative. 



iig. An eighteen-year-old gelding, left in hospital loth May, i8g8. 



For a long time previously this horse had shown difficulty in urinat- 

 ing: it stretched out and made efforts, but the penis did not protrude 

 beyond the sheath, and the urine escaped in a straggling stream 

 accompanied by very offensive pus. 



State on Examination. — The scrotum and prepuce were extremely 

 sensitive to the touch. After casting the horse the penis was with- 

 drawn, and a tumour the size of a man's iist, occupying the upper and 

 right lateral surfaces, but not affecting the urethra, was found on its 

 free extremity. This tumour was greyish in colour, ulcerated, divided 

 into two lobes by a deep longitudinal groove, and covered with a thick 

 layer of offensive material, formed by pus, blood, and smegma. Urine 

 was passed into the sheath, which was greatly inflamed. The general 

 condition was satisfactory, and the functions of the body normal. 



Treatment. — On the 19th May a portion of the penis was amputated 

 by the usual method. Haemorrhage was trifling, and was checked by 

 applying a rubber bandage, an inch below which the penis was cut 

 through. Evening temperature was 38*5" C. The horse ate its food. 



On the 20th and 21st the animal was depressed, left the greater part 

 of its food, and showed signs of colic. The sheath was enormously 

 swollen and the stump of the penis retracted. Temperature 38*9° C. 

 During the next two days the condition remained stationary. 



On the 25th the animal was cast on the table. The sheath had 

 greatly contracted, so that the stump could not be protruded. It was 

 laid open. The extremity of the penis was slightly swollen, the india- 

 rubber ligature had cut through, and the urethral wound was covered 

 with sebum and blood-clot. The sheath was freely incised along the 

 middle line. The somewhat free bleeding which ensued was checked 

 by the actual cautery and application of forceps. 



During the following days the stump was readily protruded previous 

 to staling. 



When the horse left hospital on the loth June the preputial and 

 urethral wounds were healing well. 



On microscopic examination the tumours in this, and in the pre- 

 ceding case, appeared formed by a connective tissue stroma, and by 

 pavement epithelial cells arranged in lobules of various size. In the 

 small lobules the cells appeared actively growing, and stained readily 

 with carmine ; in the centre of the larger the cells had undergone corni- 

 fication, and were, arranged in epidermal "nests." 



PARALYSIS OF THE PENIS. 



120. A fifteen-year-old entire horse, left in hospital 23rd December, 

 1897. 



A few days after an attack of colic the penis had remained 

 pendent and swollen, and could not be retracted into the sheath. It 

 was scarified and cold douches apphed, despite which, however, it 



