RESUMEN
Correlation between clinical and pathomorphological diagnosis in 117 autopsy cases with primary bronchial oat cell carcinoma has been done. In more than 1/3 of all cases clinicians did not recognise primary bronchial neoplasm, in 1/4 they made the proper diagnosis of oat cell carcinoma, and in rest of the cases clinical diagnosis was "Carcinoma bronchi", without proper histological type, or they only made the doubt about bronchial carcinoma. Such diversity between clinical and pathomorphological diagnosis could be explained by specific biological behaviour, rather nonspecific clinical signs, and most of all, an increasing rate of this carcinoma in younger patients. In conclusion, it is necessary to point out the importance of interdisciplinary approach, in the first place pathologists and clinicians, what might certainly contribute to the quality of work for both.