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 usually is from the posterior mediastinum.^[2]

References

↑ Whitten, CR; Khan, S; Munneke, GJ; Grubnic, S (May 2007). "A diagnostic approach to mediastinal abnormalities.". Radiographics : a review publication of the Radiological Society of North America, Inc. 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.

Radiologic signs

Cardiovascular	Aortic unfolding Dense artery sign Halo sign

Respiratory	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

Urogenital	Canga's bead symptom

Musculoskeletal	Crescent sign Fabella sign Fat pad sign Osteopathia striata Sail sign of the elbow

Gastrointestinal	Cupola sign Double bubble Endoexoenteric Football sign Hampton's line Hot quadrate sign Mumoli's sign Omental cake Pneumatosis intestinalis Rigler's sign Sentinel loop

Neurological	Hot cross buns Hyperdense middle cerebral artery

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Hilum overlay sign

See also

References