Preferred Label : superior triangle sign;
Definition : In chest radiology, widening of the superior mediastinum, usually on the right, associated
with collapse of the lower lobe producing traction on the mediastinal pleura. May
be seen with right lower lobe atelectasis.;
Source : Stedman's Medical Dictionary. 2006 Lippincott Williams & Wilkins.;
Origin ID : RID35600;
Associated condition(s)
In chest radiology, widening of the superior mediastinum, usually on the right, associated
with collapse of the lower lobe producing traction on the mediastinal pleura. May
be seen with right lower lobe atelectasis.
