Possible tracheal web: on low dose lung cancer screening CT

Case contributed by Dr Jayanth Keshavamurthy


Low dose chest CT screening for lung cancer in a smoker, uses cocaine and smokes marijuana.

Patient Data

Age: 61
Gender: Male

Dose index is seen.

Non contrast low dose CT chest findings are

There is a 4 mm solid nodule within the lateral left upper lobe (less than 1% chance of malignancy).

LUNG-RADS category 2: Negative, small left upper lobe nodule (less than 1% risk of being malignant).

Potentially Significant Incidentals (LUNG RADS category S): There is advanced atherosclerotic calcification of the left main, LAD, circumflex, and RCA. Mild atherosclerotic calcification of the thoracic aorta.

Probable tracheal web. There is moderate paraseptal emphysematous changes, predominantly apical with large bullous transformation in the left apex.

Differential diagnosis thin line of mucus?

Case Discussion

Normal PFT's and asymptomatic.

So no further testing for the finding in the trachea until next years lung screening with low dose CT chest.

If it persists then it is real and not a mucus.

He should stop smoking cigarettes and other drugs.

PlayAdd to Share

Case information

rID: 40842
Published: 5th Nov 2015
Last edited: 6th Nov 2015
System: Chest
Inclusion in quiz mode: Included

Updating… Please wait.

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.