Air crescent sign
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| Air crescent sign in Axial CT image. (Image courtesy of radiopaedia.org) |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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.[1] Classically, it is due to aspergilloma (a type of aspergillosis) in the lung. This occurs when Aspergillus colonizes a cavity in the lung.[2]
References
- ↑ Abramson S. The air crescent sign. Radiology. 2001 Jan;218(1):230-2. PMID 11152807. Free Full Text.
- ↑ Curtis AM, Smith GJ, Ravin CE. Air crescent sign of invasive aspergillosis. Radiology. 1979 Oct;133(1):17-21. PMID 472287. Free Full Text.
External links
- Air cresent sign on CXR - radiology.rsnajnls.org
- Air cresent sign on CT - radiology.rsnajnls.org
