Relationship between echogram and histology of benign prostatic hyperplasia.

Echograms of benign hyperplastic prostates by means of transrectal ultrasonography were evaluated according to their ability to distinguish between internal and external glands. Of the 112 benign prostatic hyperplasia (BPH) cases, we could distinguish between internal and external glands in 43 cases (38.4%). In 24 of all BPH cases, their preoperative echograms and postoperative histologies were compared. The result was that it was difficult to distinguish between internal and external glands in the many chronic-inflammatory infiltrates.