| Air Crescent Sign DOWNLOAD FACT SHEET IN PDF References: 1) Abramson S. The Air Crescent Sign. Radiology 2001;218:230-232 [PDF] 2) Fred HL, Gardiner CL. The Air Crescent Sign: Causes and Characteristics. Texas Heart Institute Journal 2009;36(3):264-265 [PDF] 3) Marshall GB, Farnquist BA, MacGregor JH. Signs in Thoracic Imaging. J Thorac Imaging 2006;21(1):76-90 [PDF] |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |