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Dilated pulmonary trunk and right heart.
Large scimitar vein draining the entire right lung to the supradiaphragmatic IVC.
Systemic artery arising from aorta at the level of the hiatus supplying a right lower lobe pulmonary segment, with venous drainage to the IVC representing an extralobar sequestration.
Horseshoe lung with a retrocardiac tongue of pulmonary parenchyma crossing the midline into the left hemithorax.
Extralobar sequestration with a pleural covering and containing atelectasis and foci of consolidation.
In conclusion, congenital pulmonary venolobar syndrome in a young child with the following features:
- scimitar syndrome
- right heart and pulmonary trunk dilatation secondary to a left to right shunt
- right lower lobe pulmonary extralobar sequestration
- horseshoe lung