Hypoplasia of right lung with dextroposition
Hypoplastic Right Pulmonary artery
Anomalous arterial supply to right lower lobe from aorta
Anomalous pulmonary venous connection to inferior vena cava
Scimitar is characterized by a hypoplastic lung that is drained by an anomalous pulmonary vein into the systemic venous system.
Differential Diagnosis:
General imaging differential considerations include:
Pulmonary sequestration
Right middle lobe atelectasis (on AP plain radiograph)
Unilateral absence of pulmonary artery (UAPA)
Pearls:
Anomalous vein usually drains into: inferior vena cava: most common
