Hilum overlay sign
The hilum overlay sign is an imaging appearance on chest radiographs in which the outline of the hilum can be seen at the level of a mass or collection in the mid chest.[1] It implies that the mass is not in the middle mediastinum, and is either from anterior or posterior mediastinum(most of the masses arise from the anterior mediastinum).[2]
See also
- Chest radiograph
- Human lung
- Mediastinum
- Radiology
- X-ray
References
- ^ Whitten, CR; Khan, S; Munneke, GJ; Grubnic, S (May 2007). "A diagnostic approach to mediastinal abnormalities". Radiographics. 27 (3): 657–71. doi:10.1148/rg.273065136. PMID 17495284.
- ^ Feragalli, B; Mantini, C; Patea, RL; De Filippis, F; Di Nicola, E; Storto, ML (June 2011). "Radiographic evaluation of mediastinal lines as a diagnostic approach to occult or subtle mediastinal abnormalities". La Radiologia Medica. 116 (4): 532–47. doi:10.1007/s11547-011-0658-9. PMID 21424313.
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Radiologic signs
- Aortic unfolding
- Dense artery sign
- Halo sign
- Air crescent sign
- Deep sulcus sign
- Golden S sign
- Hampton hump
- Kerley lines
- Peribronchial cuffing
- Sail sign of the chest
- Silhouette sign
- Steeple sign
- Thumbprint sign
- Traction bronchiectasis
- Tree-in-bud sign
- Westermark sign
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