Fig. 10From: Spectrum of early lung cancer presentation in low-dose screening CT: a pictorial reviewEndobronchial lung cancer. (a) Axial low-dose CT shows a small lesion abutting the posterior wall of the right main bronchus, interpreted as non-suspicious bronchial mucus (arrow). (b) Low-dose CT performed 1 year later shows a significant reduction of bronchial caliber due to the presence of neoplastic tissue (arrowheads)Back to article page