Fig. 3From: Chest imaging using signs, symbols, and naturalistic images: a practical guide for radiologists and non-radiologistsArcade-like sign. Perilobular fibrosis in a patient with COP disease, which appears as curved or arched consolidation bands, with shaded margins, distributed around the structures surrounding the secondary pulmonary lobules (white arrows). This pattern resembles an arcade appearance (as reproduced in the embedded picture)Back to article page