PMC5508624_01
Three-dimensional computed tomography image of the anomalous V2 pulmonary vein, which drained into the superior side of the inferior pulmonary vein (IPV). A: image of the left pulmonary vein, B: image of the left bronchus, pulmonary artery, and pulmonary vein.
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Preoperative 3D-CT revealed that an anomalous V2 vein that drained from the superior segment in the left upper lobe into the upper side of the inferior pulmonary vein (Fig. 1).
Thoracoscopic view. A: A view from interlobar fissure. The anomalous V2 vein drained from the left upper lobe running on the dorsal side of the pulmonary artery. B: The inferior pulmonary vein The left lower lobe (LLL) and left upper lobe (LUL) are retracted toward the ventral side. The anomalous V2 vein drained into the inferior pulmonary vein (IPV).
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V2 was confirmed. V2 had joined the superior side of the inferior pulmonary vein and was running on the posterior side of the pulmonary artery and the bronchus from the upper lobe (Fig. 2).