262 Surgical Diseases and Surgery of the Dog 



matter does not tend to accumulate, but is constantly discharged 

 by way of the urethra. 



Treatment. This should be directed towards relieving pain 

 by administration of morphine or chloretone. Catheterization must 

 be kept up every ten or twelve hours so long as the flow of urine 

 is obstructed. If the catheter cannot penetrate, puncture of the 

 bladder must be resorted to. Brisk purgatives should also be ad- 

 ministered. A stream of cold water directed over the perineum 

 is useful to allay the inflammation. When pus is present an attempt 

 should be made to cause its evacuation by pressure over the gland 

 through the abdominal wall or with the finger in the rectum. Haub- 

 ner cured a case in this manner. Failing in this, the matter must 

 be removed by the aspirating syringe or a fine trocar and canula 

 introduced through the perineum, the finger in the rectum serving 

 to guide the instrument, or the rectum may be dilated with a 

 speculum and either instrument thrust through its wall into the 

 gland. 



Prostatic abscesses discharging by way of the perineum are 

 treated by antiseptic irrigation. 



NEOPLASMS. 



The growths which affect the prostate are the non-malignant 

 hypertrophic enlargements and malignant carcinoma. 



Hjrpertrophy. H3T)ertrophic enlargement of the prostate is 

 a very common affection among old animals. It may occur also 

 in young animals. The condition is one of abnormal growth of 

 pre-existing gland-tubules but without the power of producing the 

 secretion as in the normal gland. After a variable time atrophy 

 of the tubules and muscle-fibers of the stroma takes place, and in 

 their place fibrous connective tissue develops. Small cysts are 

 formed through small areas of gland-tissue becoming separated by 

 trabeculae of fibrous or fibro-muscular tissue. It will be remembered 

 that the gland is voluminous under normal conditions and sur- 

 rounds the origin of the urethra and the neck of the bladder. Any 

 increase in volume tends, by compression, to occlude the urethral 

 canal so that micturition becomes a matter of difficulty and at times 

 an impossibility. Prostatic enlargements are very prone to pro- 

 lapse into the perineal region to constitute the contents of perineal 

 hernia. 



Symptoms anl Diagnosis. The symptoms of hypertrophy are 



