Author studied the pathogenesis of bronchiectasis with review of clinical findings and histopathological findings of the resected lungs in 24 cases of bronchiectasis, and the results were as follows;
1) Of the 24 cases of bronchiectasis, the primary bronchiectasis were 20 cases, tuberculous bronchiectasis were 2 cases and the secondary bronchiectasis were 2 cases.
2) 65% of this illness were diagnosed as pulmonary tuberculosis in local clinics and it is necessary to differentiate more accurately from pulmonary tuberculosis for the control of pulmonary tuberculosis.
3) We classified this illness 3 groups as Saccular type(group Ⅰ), Tubular type (group Ⅱ) and Mixed type (group Ⅲ) under the considerations of the past history, clinical findings, bronchographical results and pathological finndings of the resected lungs in 24 cases of bronchiectasis.
4) In saccular type(groupⅠ), a great unmber of the patients had past history of bronchopneumonia in childhood, and their pathological changes in volved more than one lobe or one whole lung, and on bronchographic findings, they revealed multi-saccular formation, and they, unless infected, were dry-bronchiectasis.
5) In tubular type (group Ⅱ), most patients had past history of paranasal sinusitis, whooping cough and measles, and their pathological changes involved in each basal lung and/or in segment 4 and segment 5 (esp. in left lung), and they revealed tubular or fusiform appearance on bronchography, their symptoms and signs were wet-bronchiectasis.
6) Author studied the pathogenesis of bronchiectasis in each group(group Ⅰ and group Ⅱ) and the complication of paranasal sinusitis might be, at least, the cause of the bronchiectasis of group Ⅱ.
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