Cryptogenic organizing pneumonia: atoll sign

Case contributed by Paul Leong
Diagnosis probable

Patient Data

Age: 65 years
Gender: Male
Download
Info

There is an ovoid lesion in the right lower lobe which demonstrates central ground-glass density surrounded by peripheral consolidation. The appearances are consistent with an 'atoll-sign', which is seen in COP. 

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

:

Updating… Please wait.

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

 Thank you for updating your details.