Air crescent sign
Presentation
Patient with acute myeloid leukemia.
Patient Data
Age: 60 years
Gender: Female
From the case:
Air crescent sign
CT
CT Chest
Axial
CT scan shows an air crescent sign of recovering angioinvasive aspergillosis.
Case Discussion
An air crescent sign describes the crescent of air that can be seen in invasive aspergillosis, semi-invasive aspergillosis or other processes that cause pulmonary necrosis.