Tram-track sign (chest)

Last revised by Andrew Murphy on 22 Jul 2018

Tram-track sign may be used in chest radiography or CT to denote the thickened non-tapering (parallel) walls of cylindrical bronchiectasis.

It should not be confused with other tram-track signs elsewhere in the body. 

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Cases and figures

  • Figure 1: tram-tracks
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  • Case 1
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