Reversed halo sign - COVID-19

Case contributed by Mohammad Taghi Niknejad
Diagnosis almost certain


Cough and breath shortness.

Patient Data

Age: 50 years
Gender: Female

Multiple patchy ill-defined mostly subpleural opacities are seen at both lungs, highly suggestive for COVID-19 pneumonia. Some of them show a reverse halo sign.

Case Discussion

Reversed halo sign is defined as central ground-glass opacity surrounded by denser consolidation of crescentic shape or complete ring. Coronavirus infection in the context of COVID-19 could be considered in the differential list.

The patient had positive COVID-19 RT-PCR.

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