Does a prostatic capsule exist? Pathologists and urologists use the word “capsule” when evaluating the extent of prostatic cancer in prostatectomy specimens


In a very strict sense, the prostate lacks an intact capsule. For practical reasons, however, the prostate has a capsule along its dorsolateral aspect extending from the base down close to the apical margin. The ventral (anterior) middle third does not have a capsule but, instead, is invested by a thick smooth muscle layer that extends dorsally (posteriorly) in the midline and invests the urethra as a preprostatic sphincter. We now prefer the term “extraprostatic extension” (EPE) when prostate cancer extends outside the prostate. This is to avoid the argument of the presence or absence of a prostatic capsule.


Radical Prostatectomy Seminal Vesicle Smooth Muscle Layer Prostatectomy Specimen Apical Margin 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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