The authors have performed bronchofiberscopies on 131 patients with various lung diseases at the Dept. of Internal Medicine, Chung-Nam National University Hospital during the period of August 1981-. May 1983.
The results are summarized as follows;
1) Among the 131 cases who underwent flexible bronchofiberscopy, 66 cases(50.4%) complained of hemoptysis and the most common cause of hemoptysis was lung cancer with an incidence of 50H (33 cases). The next common causes were pulmonary tuberculosis bronchiectasis 4.5%(3 cases), pleurisy 4.5%(3 cases) and in 22.7%(15 cases) the diagnosis was no obtained.
2) Among 131 cases in which bronchofiberscopy was performed, 60 cases(45.8%) were lung cancer, 13 cases(9.9%) were pulmonary tuberculosis, 10 cases(7.6%) were pleurisy, 9 cases(6.9%) were pneumonia, 8 cases(6%) were lung abscess, 4 cases(3.1%) were bronchietasis, 3 cases(2.3%) were bronchitis and in 24 cases(18.3%) no definite diagnosis could be obtained.
3) The sites of prevalence for bleeding were both upper lobes with prediliction for the right lung with a ratio of 1.2：1(36 cases of right lung and 29 cases of left lung).
4) The diagnostic accuracy of bronchoscopic biopsy and cytology in the lung cancer was 95% an4 the histologic classification of the 60 cases of lung cancer were as follows; 39 cases(65%) of squamous cell cancer, 9 cases(15%) of undifferentiated cell cancer, 1 case(1.7%) of adenocarcinoma, 3 cases(5%) of metastatic cancer and 8 cases(13.3%) of undetermined cancer.
5) The most frequent ages were 6th and 7th decades and the male-to-female ratio was 11：1.
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