Lung cancer: hilum overlay sign
Known biopsy proven lung cancer. Re-admission with shortness of breath.
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Large mass in the right hemithorax. The right paratracheal stripe remains despite the mass extending to the midline indicating the mass does not lie in the mediastinum.
The right hilum is also clearly delineated projected over the mass, indicating this is not a hilar mass.
Left lung clear.
Heart size normal.
This was a proven lung malignancy - the lung mass it large and illustrates well the hilum overlay sign.