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Figure 2 Common ostium of the left pulmonary veins, as evaluated in three different orthogonal planes and a three dimensional reconstruction using multislice computed tomography. (A) Sagittal plane. The superior and inferior pulmonary veins have united to form a common truncus before entering the left atrial body. (B) Coronal plane. (C) Transversal plane. (D) Three-dimensional reconstruction. A common truncus of the left pulmonary veins can be observed in all orthogonal planes and on the three-dimensional reconstruction. Abbreviations as in Figure 1.