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Air crescent sign
In radiology, the air crescent sign is a finding on chest X-ray and/or computed tomography that is crescenteric and radiolucent, due to a lung cavity that is filled with air and has a round radioopaque mass. Classically, it is due to aspergilloma (a type of aspergillosis) in the lung. This occurs when Aspergillus colonizes a cavity in the lung.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Air_crescent_sign". A list of authors is available in Wikipedia.|