[Electron microscopy of prostatic carcinoma cells (author's transl)]

20 histologically proven carcinomas of the prostate were studied by light and electron microscopy. Three different cell types were found in the carcinomas, characterised by typical structures of nuclei and cytoplasm. First the so called dark cells showed a polar architecture and sometimes cells with anaplastic alterations. Then the so called light cells appeared not to be a secretory type but proliferative cells with embryonal character. The third type included malignant cells similar in appearance to the cells of normal prostatic glands. Vacuolisation of cells was observed only in the necrotic areas.