Cryptogenic organising pneumonia

Case contributed by Dr Mark Holland


Presented to the GP with chronic cough and had an incidental eosinophilia a year ago

Patient Data

Age: 40
Gender: Female

Patchy air space opacities in bilateral upper zones.

Reversed halo pattern (atoll sign): there are focal round areas of ground-glass attenuation with surrounding crescent or ring shaped consolidation.


Reversed halo shape of a daisy

Case Discussion

Patient with organising pneumonia shows a reversed halo pattern (atoll sign) where there are focal round areas of ground-glass attenuation with surrounding crescent or ring shaped consolidation 

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Case information

rID: 19553
Case created: 23rd Sep 2012
Last edited: 30th Jan 2018
System: Chest
Inclusion in quiz mode: Included

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