Superior periaortic pericardial recess
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Good example of a superior periaortic pericardial recess.
These recesses can be mistaken for normal or pathological lymph nodes. The 2 distinguishing features are:
- they are (pericardial) fluid density whereas nodes are not and
- they 'hug' the ascending aorta - they are often banana shaped, with the surface closest to the ascending aorta concave around the aorta. Nodes tender to be round, oval or reniform.