[Validity of transrectal ultrasonography and echo-guided biopsy in the early diagnosis of prostatic neoplasms. Our experience on 100 cases].

100 patients from age 50 to 80 that presented urinary obstructive symptoms were studied with digital examination and with TR ultrasound; only 10 were palpably suspicious for prostatic carcinoma, the rest had a BPH. These 10 patients and 32 of the remaining revealed an abnormal area with ultrasound. 6 of the 10 palpably suspicious patients had prostatic carcinoma (60%). 8 of the 32 remaining patients had prostatic carcinoma (25%). Therefore of the 14 prostatic carcinoma 6 were of palpably positive patients, and 8 were of palpably negative patients. We suggest with this work that transrectal ultrasound is a useful technique in the early diagnosis and in the follow-up of prostatic nodules, and it is a necessary support in the decision for effecting echo-guided biopsy.