CTICasesBronchial Artery-to-Pulmonary Artery Shunt
Imaging findings
A dark, filling defect on CT pulmonary angiography that mimics a pulmonary embolism.
Key takeaways
Systemic bronchial arteries, especially in patients with pulmonary hypertension, can cause pseudo-PE artifacts on early-phase CTA; using delayed scanning helps differentiate them.
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