Round atelectasis

Case contributed by Dr Omar Giyab


Patient suffering from psoriasis, and chronic myeloid leukemia.

Patient Data

Age: 65 years
Gender: Male

Left-sided pleural effusion and a lower lung lobe mass seen on an exam that was initially performed to rule out pneumonia.

A CT was performed to further characterise the lesion seen on the x-ray.


The lesion shows features of round atelectasis.

Case Discussion

Differential diagnosis between round atelectasis and lung mass can be difficult. Comet tail sign, together with pleural effusion are suggestive features of round atelectasis.

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Case information

rID: 28105
Published: 14th Mar 2014
Last edited: 14th Aug 2019
System: Chest
Inclusion in quiz mode: Included
Institution: University of Pécs

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