Atoll Sign (Reverse-Halo Sign) on Chest CT • Central ...

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Description

Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential denser consolidation
 • DDx: COP, IFI, PJP, LG, GPA, lipoid pna, sarcoidosis, paracoccidioidomycosis

https://doi.org/10.1016/j.chest.2016.12.033

#Atoll #Reverse #Halo #Sign #CT #Lung #Pulmonary #diagnosis #radiology #clinical

Contributed by

Dr. Priyanka Teckchandani

@DrTeck

GrepMed Pulmonary and Critical Care Editor - Academic Hospitalist UC Davis Medical Center Internal Medicine, Pulmonary and Critical Care Medicine Fellow UC Irvine ‘22

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