724 



REPRODUCTIVE ORGANS OF THE MALE. 



adenomata may form both with and without hyperplasia of the connec- 

 tive tissue, muscle, and glands. 



In partial hypertrophy there are circumscribed nodules of muscle 

 tissue or of muscle and gland tissue. There are usually situated at the 

 periphery of the organ and project into the bladder. They may become 

 detached from the prostate, and found as small, movable tumors beneath 

 the mucous membrane of the bladder. 



INFLAMMATION. (Prostatitis.) 



Acute exudative inflammation of the prostate is induced by gonorrhrea, 

 by injuries, or, more rarely, is independent. It may be acute or chronic. 

 The gland may after a time return to its normal condition, or is gradu- 

 ally converted into a mass of fibrous tissue filled with abscesses. The 

 abscesses may perforate into the bladder, urethra, vesiculse seminales, 

 rectum, or peritoneum. Or the inflammation may extend to the connec- 

 tive tissue of the scrotum or beneath the pelvic peritoneum. The pus 

 may become thickened and cheesy, or even calcified. 



Tuberculous Inflammation of the prostate usually accompanies a similar 

 lesion of some of the other genito-uriuary organs. Large cheesy masses 

 are often formed, which may break down and open into the bladder or 

 rectum. 



TUMORS. 



Sarcoma of the prostate has been described. Adenoma (Fig. 478) 

 occurs either with or without an increase in the nbro-nmscular interstitial 

 tissue and gland hyperplasia. 



Carcinoma is of occasional occurrence, and may be primary or secon- 

 dary. 



Cysts of the prostate are sometimes found either as a result of occlu- 



FIG. 478. ADENOMA OF THE PROSTATE. 



In the upper portion of the cut, at the right, are three nearly normal acini of the prostate, while the re- 

 mainder shows various phases of new gland formation. The prostate, in addition to the circumscribed 

 tumor growth, was the seat of the usual glandular and interstitial hyperplasia. 



