前立腺疾患に於ける会陰部穿刺生検法の診断的価値

抄録

The perineal biopsy for the prostate with the Vim Silverman needle was performed 243 times, during May of 1959 to January of 1963, on 217 cases which were diagnosed by the palpation as the prostatic cancer (40 cases), doubted on the prostatic cancer (34 cases), diagnosed as the prostatic hypertrophy (107 cases), and the prostatitis (36 cases), respectively.
In comparison of the results on the detection of the prostatic cancer by the palpation or the perineal needle biopsy, the cancer was detected by the biopsy in the rate of 71% among the cases which were diagnosed as the cancer by the palpation, while 11.5% of the cases which were doubted on the cancer by the palpation was confirmed as the cancer in the same manner.
Furthermore, 59% of 107 cases which were diagnosed as the hypertrophy by the palpation, was also revealed the same findings, however, the cancer was discovered in the rate of 11.3% of them by the perineal biopsy. While, 77.2% of 36 cases which were diagnosed as the inflammation by the palpation, has showed the same results by the biopsy, but 11.4% of them revealed the cancerous sign by the same way.
The accuracy rate of the diagnosis by the perineal biopsy was examined by the comparison of the histological findings of the specimens which were prepared by the operation of the prostate.
The cancer was proved significantly in the rate of 93.7% of the cases which were diagnosed as the same by the biopsy, while only 2 of 5 cases, which were doubted on the cancer by the biopsy, was confirmd as the cancer.
The latent carcinoma was recognized in 2 of 3 cases which were diagnosed as the same by the biopsy but on the another one case only the findings of the hypertrophy was noticed.
The hypertrophy was confirmed on 41 of 45 cases (91.10), which were diagnosed as the same by the biopsy, however, 2 cases of the latent carcinoma and 2 cases of the inflammation were found by the histological examination of the extirpated prostate through out the operation.