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Repeat (second) bronchoscopy was undertaken in 60 patients with clinically and radiologically suspected pulmonary neoplasm who had inconclusive first fibreoptic bronchoscopy, in an effort to maximise the detection of bronchogenic carcinoma. All the 15 endoscopically visible lesions were found to be primary malignant tumours. Of the remaining 45 patients without bronchoscopically visible lesions, nine (20%) were found to have bronchogenic carcinomas. Maximum yield of 83.3% of total 24 carcinomas belonged to the central lesions. Repeat bronchoscopy in selected patients is useful.