Abstract
T. B. L. B. and brushing by applying the bronchofiberscope were performed in 112 cases since 1978. We studied the evaluation of T. B. L. B. and brushing by applying the broncho-fiberscope in the pulmonary diseases.
1) In the peripheral coin lesions on the chest-X ray, the diagnostic rate of T. B. L. B. was 53% and that of brushing was 83%. Brushing was positive in the peripheral coin lesions greater than 3 cm in diameter but the diagnostic accuracy of brushing is influenced by tumor location in those less than 3 cm in diameter.
2) In squamous cell carcinoma the diagnostic rate of T. B. L. B. was 88% and that of brushing was 100%, which was not influenced by tumor location and diameter.
3) In adenocarcinoma the diagnostic rate of T. B. L. B. was 68% and that of brushing was 96%. Brushing was positive in adenocarcinoma greater than 3 cm in diameter but in which less than 3 cm the diagnostic accuracy of brushing is influenced by tumor location.
4) In alveolar cell carcinoma of the infiltrate type on the chest X-ray the diagnostic rate of T. B. L. B. and brushing were 100%.
