Abstract
This study was carried out to investigate the bronchoscopic findings of the middle lobe (lingular) syndrome (n=48). The findings of the bronchial lumen, bifrucation and mucosa were mainly observed and compared with cases of lung cancer (n=10) and tuberculosis (n=2). In the middle lobe (lingular) syndrome, the positive rate of finding was less than 50%, however, in lung cancer and tuberculosis it was almost 100%. It was suggested that the middle lobe (lingular) syndrome might be separated into two groups, that is, the orifice dominant (B^4, B^5) and the lobe dominant (S^4, S^5) types.
