[Combined diagnosis of primary lung cancer using immunological tests]

To compare the accuracy of diagnosis obtained with different diagnostic techniques the authors examined 187 patients with cancer of the lung clinically, roentgenologically, bronchologically, morphologically and immunologically. X-ray made the diagnosis of lung cancer in 85% of the examinees. This diagnosis was confirmed in 87% of the cases. Morphological verification was obtained in 84.4% and 78.2% of patients with central and peripheral cancer, respectively. Additional immunological investigations increased the proportion of accurate diagnoses up to 96.8%. It is concluded that immunological investigations are effective in complex diagnosis of lung cancer.