CTICasesPseudo-Sequestration (Chronic Abscess)
Imaging findings
A mass with low attenuation and extensive hyperemic recruitment from the inferior phrenic artery and bronchial circulation, mimicking a sequestration.
Key takeaways
Not all systemic arterial supply to the lung is congenital. Chronic inflammation/abscess can cause neovascularity that parasitizes the systemic circulation, termed a 'pseudo-sequestration.'
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