[Cytological classification of lung carcinomata (author's transl)]

By comparing the cytological examinations and the final histological classification, the author discusses the possibilities of cytological type judgement. Using a staining method invented by himself, he was able to achieve a conformity of the cytological and of the final histological classification in 80 per cent of all cases. Abstaining from the differences in the judgement of maturity, the results of both methods were in conformity even in 89 per cent of all cases. As compared to the biopsy during bronchoscopy the cytological type classification was more exact. The difference had, however, proved to be insignificant (p greater than 0,05). The advantage of the author's own staining method is particularly obvious at the detection of mucus-forming carcinomata. In this way, two out of three mixed forms of epidermoid carcinomata and of adenocarcinomata could be correctly diagnosed.