[Sonographic image of prostate cancer].

The echo structures of 325 carcinomas of the prostate gland were analysed out of a total of 2700 transrectal prostate sonographies. In addition, 93 prostate glands from postmortem examinations were examined sonographically in the water bath in order to enable accurate juxtapositioning of interesting sonographic structures and the proper morphological correlates in each case. The echo density of more than one-half of the total number of carcinomas was found to be equal to that of a normal prostate gland, although the carcinomas were characterised by hazy marginal definition or inhomogeneity.