Air crescent sign in chest X-ray is seen in: September 2010
Ans. C: Invasive Angioinvasive aspergillosis is the most severe and aggressive form of invasive aspergillosis and is seen only in profoundly immunocompromised patients and is a life threatening condition requiring prompt treatment. Typical appearances are those of solitary or multiple pulmonary nodules or masses. Wedge-like areas of ill-defined opacity may also be seen most likely representing infarcts due to invasion of proximal pulmonary vessels. An air crescent may be visible, although it is seen earlier on CT.
Blastomycosis
Pneumonia
Invasive aspergillosis
Bronchiectasis