| Hilum Overlay Sign DOWNLOAD FACT SHEET IN PDF References: 1) Marshall GB, Farnquist BA, MacGregor JH. Signs in Thoracic Imaging. J Thorac Imaging 2006;21(1):76-90 [PDF] 2) Felson B. More Chest Roentgen Signs and How to Teach Them. Radiology 1968;90:429-441 [PDF] 3) Felson B. The Mediastinum. Seminars in Roentgenology 1969;4(1):41-58 [PDF] |