Arcade-like sign

Last revised by Yuranga Weerakkody on 13 Jul 2023

The arcade-like sign refers to the typical features of perilobular fibrosis found in cryptogenic organizing pneumonia 1. It is likely the result of perilobular inflammation and shows itself in the form of an arcade or arched appearance of consolidation bands distributed around the structures surrounding the secondary pulmonary lobules 1. It is present in more than half the patients with cryptogenic organizing pneumonia 2.

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