Fig. 2From: The Zamvar pericardial foldThe Zamvar Pericardial Fold. This figure shows a cross-sectional view of the anterior surface of the left sided pulmonary vein. The visceral pericardium covering the left atrium, becomes the parietal pericardium lining the under-surface of the fibrous pericardium. It folds back onto itself forming the “Zamvar” Pericardial FoldBack to article page