cylindrical bronchiectasis

Cylindrical bronchiectasis, also known as tubular bronchiectasis, is the most commonly identified morphologic type of bronchiectasis where there is smooth uniform enlargement of bronchi with loss of the normal distal tapering of the airways but without focal outpouchings or tortuosity.

For a general discussion, please refer to the article on bronchiectasis.

Radiographic features

CT

May show varying degrees of elevated broncho-arterial ratios extending in a tubuar fashion. This could give a tram-track sign.