Win an All-Acess Pass!
Become a new yearly Curie (Radium) or Roentgen (Gold) Radiopaedia Supporter during December and be in the running to win one of four 12-month All-Access Passes. Find out more.

Air crescent sign

Case contributed by Assoc Prof Frank Gaillard

An ill-defined mass surrounded by ground glass opacity in an immunocompromised patient is suspicious for a fungal infection. 


8 days later, post treatment

An air crescent sign has developed indicating recovery. 


  • Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

Case Discussion

Air crescent sign of recovering angioinvasive aspergillosis

PlayAdd to Share

Case information

rID: 8683
Published: 22nd Feb 2010
Last edited: 28th May 2020
System: Chest
Inclusion in quiz mode: Excluded

Updating… Please wait.

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

 Thank you for updating your details.