Total anomalous pulmonary venous connection— radiological features
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Seventeen cases of total anomalous pulmonary venous connection (TAPVC) were studied radiologically in the last five years. The diagnosis was confirmed by cineangiography in 16 cases and at necropsy in one patient who was found to have infradiaphragmatic variety of TAPVC. Eleven of the 16 cases were found to have supracardiac TAPVC through the left ascending vein. In five cases the anomalous veins connected to the right atrium. Four of these five cases with right atrial connection drained through the coronary sinus and in the fifth case the anomalous veins entered the right atrium directly. Postero-antevior thoracic roentgenogram identified supracardiac anomalous connection in each of the eleven cases. The thoracic roentgenogram was nonspecific in the five cases of the cardiac type of TAPVC. Levophase of the pulmonary angiogram was useful not only in the identification of TAPVC but also indicated whether all or only some of the veins are connected anomalously. Biplane angiogram was found to be useful in cardiac type of TAPVC.
Key wordsTotal anomalous pulmonary venous connection (TAPVC) radiographic features cine-angiography classification
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