Skip to Content

tram lines


Definition: the images of bronchial walls on a plain chest radiograph. When seen distally, indicative of bronchiectasis or chronic bronchitis; usually thickened; colloq., British.

Synonym(s): radiographic parallel line shadow

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.