Total anomalous pulmonary venous connection chest x ray

Overview

Chest xray — The findings on chest radiography varies depending on the type of anatomic variant of total anomalous pulmonary venous connection (TAPVC). However, the findings are not useful in making the diagnosis.

The findings on chest xray seen in total anomalous pulmonary venous connection are

Unobstructed

• Snowman sign
• Mild dilatation of the pulmonary arteries.
• Mild cardiomegaly

Obstructed

• Pulmonary vein congestion
• Dilatation of the pulmonary arteries
• Pulmonary edema