[Supra-symphyseal ultrasound study as a simple method for determining the size of prostatic adenoma. Results in over 100 open prostatectomies].

In more than 100 patients with benign prostatic hypertrophy a preoperative ultrasound evaluation was performed by transabdominal longitudinal and transverse scan. The result was compared to the weight of the enucleated adenoma. Dependent on measuring errors, the best prognostic value was the largest diameter of the prostate: less than 4 cm means less than 40 g in all cases; 5 cm corresponds to 50 g and 6 cm to about 70 g. This is of great help when deciding between transurethral resection or open prostatectomy from these data.