[Ultrasonically guided biopsy of the prostate for the diagnosis of carcinoma]. / La biopsia ecoguidata della prostata per la diagnosi di carcinoma.

Echoguided biopsy of the prostate is a new method used in the diagnosis of carcinoma. False negatives, which range between 7% and 27% of transperineal biopsies, can be reduced to 11% using ultrasound control. In 50% of cases carcinoma are located in the hypoechogenic area, in 45% in mixed echogenic areas and in 5% in hyperechogenic areas. The diagnosis of carcinoma was performed in 40.7% of patients examined. In conclusion, this method is shown to be a valuable and advisable aid.