Missed our latest free live-stream? Catch up now with Intracranial Enhancement by Frank Gaillard

Left upper lobe collapse due to lung cancer

Case contributed by Dr Safwat Mohammad Almoghazy


A case of newly diagnosed non-small cell lung cancer for baseline CT study.

Patient Data

Age: 68 years
Gender: Male

CT Chest

There is central mass seen the left hilar region measuring encasing the
distal part left pulmonary artery and narrowing it as well as superior pulmonary vein and occluding the left upper bronchus with a secondary total collapse of the left upper lobe.

There are multiple enlarged mediastinal lymph nodes are seen, the largest one is perivascular.

A tiny right hilar lymph node is seen. No evidence of axillary lymph nodes on both sides.

Apart from the evidence of mild emphysematous lung changes seen in the right lung, there is no convincing pulmonary lesion seen within.

No evidence of pleural or pericardial effusions.

The liver is average size with a few tiny focal lesions in segments VII and VIII the largest one is subcapsular too tiny to characterize, for follow-up. No intrahepatic biliary radical dilatation. Patent and not dilated portal vein.

Case Discussion

The case represents a newly diagnosed non-small cell lung cancer (squamous cell carcinoma) by bronchoscopy and requested for baseline CT study, and showing above-mentioned finding of left upper lobe lung collapse due to cancer bronchus and the case also demonstrates luftsichel sign due to the hyperexpanded superior segment of the left lower lobe, which insinuates itself between the left upper lobe and the superior mediastinum, sharply silhouetting the aortic arch and resulting in a lucency medially.

PlayAdd to Share

Case information

rID: 54217
Published: 5th Jul 2017
Last edited: 14th Aug 2019
System: Chest
Inclusion in quiz mode: Included

Updating… Please wait.

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

 Thank you for updating your details.