Oblique pericardial sinus

Dr Craig Hacking et al.

The oblique pericardial sinus is a blind-ending pericardial cul-de-sac behind the heart which opens into the pericardial space proper inferiorly.

Gross anatomy

It's boundaries are:

  • right (in ascending order): inferior vena cava, right inferior pulmonary vein and right superior pulmonary vein
  • superior: it is separated from the transverse pericardial sinus above by a double reflection of serous pericardium that extends transversely between the left and right superior pulmonary veins
  • left (in ascending order): left inferior pulmonary vein and left superior pulmonary vein

Anteriorly lies the heart, specifically the posterior wall of the left atrium and posteriorly the pericardium and esophagus.

Several pericardial recesses form small pockets that may extend from or towards the oblique sinus, which may mimic mediastinal lymph nodes or disease:

Thoracic anatomy
Share article

Article information

rID: 54165
System: Cardiac
Section: Anatomy
Synonyms or Alternate Spellings:

Support Radiopaedia and see fewer ads

Updating… Please wait.
Loadinganimation

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.