In 232 diagnostical cervix-conisations (almost exclusively on account of positive papsmears) there were 119 carcinomata in situ and 17 microcarcinomata. In accordance and in comparison with other investigators the frequency of microcarcinoma - related to carcinoma in situ - runs up to approximately to 14%. Microcarcinoma was found in 6% of dysplasia and in 10% of all carcinomata in situ. 2. For early clinical diagnosis (for instance papsmears and colposcopy) as well as for therapy the topographical distribution of microcarcinoma is of importance; they have been found almost exclusively on the upper part of the uterine orifice. The treatment of microcarcinoma by means of conisation is being evuluated. An individually differentiated operative therapy is aimed at, by no means, however, the so-called "radical cancer-therapy". 3. Observations concerning cancerogenesis of the carcinoma cervicis are not only of theoretical interest. The "oligophasic" cancerogenesis from dysplasia has been observed - about one fifth of all cases of microcarcinomata came into existence that way. Relatively often a cytotest showed in these cases a Papanicolaou group III. The latter fact should be taken into account in our present time for a differential cytology.
