“…Currently, the suspicion index should be increased, and the patients should be followed up closely clinically. Recently, Voss et al have proposed a clinical prediction model using multivariate, including clinical features, radiologic features and non‐positive bronchial cytology/FISH testing algorithm, to further stratify patient's risk of being diagnosed with lung cancer after initial nondiagnostic bronchial cytology . After multivariate analysis, hypertetrasomy FISH, pack years, age, atypical or suspicious cytology, and nodule spiculation have been found to be independent risk predictors.…”