CTICasesCrisscross pulmonary arteries
Imaging findings
Contrast-enhanced CT in a 3-year-old child shows anomalous origin and crossing of the branch pulmonary arteries (crisscross pulmonary arteries) where the right pulmonary artery arises inferiorly and the bifurcation is rotated 90 degrees.
Key takeaways
Crisscross pulmonary arteries is a rare congenital vascular variant characterized by crossing of the branch pulmonary arteries. Following the rule of congenital anomalies, it is frequently associated with other developmental anomalies such as a persistent left superior vena cava or tracheal bronchus.
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