Pericardial sleeve recess
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A focal density surrounds the right inferior pulmonary vein (RIPV)
Attenuation value of 9 HU
It mimics an enlarged lymph node
2 case question available
Pericardial recesses can mimic mediastinal lymph node enlargement.
This is common superiorly along the origins of the great vessels.
An understanding of the pericardial recess anatomy is important in distinguishing this normal variation from enlarged lymph nodes or soft tissue masses in the mediastinum.
Viewing these structures in 3 plane thin-section imaging as well as density measurements can help identify these normal structures.
- Truong MT, Erasmus JJ, Sabloff BS et-al. Pericardial "sleeve" recess of right inferior pulmonary vein mimicking adenopathy: computed tomography findings. J Comput Assist Tomogr. 2004;28 (3): 361-5. Pubmed citation