oblique pericardial sinus

ob·lique per·i·car·di·al si·nus

[TA]
the recess in the pericardial cavity posterior to the base of the heart bounded laterally by the pericardial reflections on the pulmonary veins and inferior vena cava, and posteriorly by the pericardium overlying the anterior aspect of the esophagus.
References in periodicals archive ?
Posterior to the left atrium lays the oblique pericardial sinus, bounded by the inferior vena cava, right pulmonary veins, and the left pulmonary veins.

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