Four images for detecting partial anomalous pulmonary venous connection (PAPVC). (A) Three dimensional transthoracic echocardiography showed PAPVC. (B) The suprasternal short-axis view with color Doppler revealed left pulmonary veins connecting with the innominate vein via a vertical vein. (C) Upward blood flow in the vertical vein was confirmed by pulsed Doppler imaging. (D) Multidetector computed tomography angiography was performed to confirm the structure of the anomalous venous system. IV: innominate vein; SVC: superior vena cava; VV: vertical vein.