[Radiologic diagnosis of silicotic cicatricial cancer. Incidence and correlation with pathologic-anatomic results]

Out of 1,200 patients with irradiated bronchogenic carcinomas, 487 men worked as coal miners and were exposed to silicon dioxide dust. Of these 212 patients showed radiological signs of pulmonary silicosis. The patients with a bronchogenic carcinoma and silicosis showed no significant dependence upon the grade of silicosis or working time underground concerning histology, age at disease onset, or localization in comparison to people with a bronchogenic carcinoma but without silicosis. Seven patients suffered from cicatricial carcinomata, the tumorous features and means of formation of which are discussed in comparison to pathological-anatomical results.