Preferred Label : hilum overlay sign;
Definition : Main pulmonary artery is observed within a hilar mass instead of near border of cardiac
shadow on a frontal radiograph. Suggests anterior mediastinal mass rather than displacement
of hilum due to cardiomegaly.;
Source : Eisenberg, Ronald L. Atlas of Signs in Radiology.;
Origin ID : RID35275;
Associated condition(s)
- Automatic exact mappings (from CISMeF team)
Main pulmonary artery is observed within a hilar mass instead of near border of cardiac
shadow on a frontal radiograph. Suggests anterior mediastinal mass rather than displacement
of hilum due to cardiomegaly.
