Table 1.

Visual classification of bronchoscopic findings

ClassDescription of bronchoscopyAutofluorescence
1/NormalNo visual abnormalityNegative (green)
2/AbnormalErythema, swelling, or thickening of bronchial mucosa, airway inflammation, and fibrosisNegative (slight decrease in fluorescence with ill-defined margin)
3/SuspiciousNodular, polypoid lesions, irregular bronchial mucosa, focal mucosa thickening suspicious of HGD, carcinoma in situ, or invasive carcinomaPositive (definite decrease in fluorescence with defined margin)