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Tram track sign (on chest radiograph)

Case contributed by Gabrielle Edney
Diagnosis almost certain

Presentation

History of bronchiectasis

Patient Data

Age: 65 years
Gender: Male

Tram-track sign with diagnosed bronchiectasis secondary to dilated bronchi within both lower lobes.

Annotated study

Annotated image

Tram-track sign annotated in a 65 year old male with diagnosed bronchiectasis secondary to dilated bronchi within both lower lobes.

Case Discussion

The tram-tack sign seen on this chest x-ray denoted thickened, non-tapered walls of the cylindrical bronchiectasis.

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