The predominant pulmonary imaging findings on chest CT in the novel 2019 coronavirus infection (COVID-19) are bilateral ground glass opacities. The reverse halo sign is uncommon. This is a report of the new "bullseye sign," which is considered a variant of the reverse halo sign and favored to represent a focus of organizing pneumonia. The specificity of this finding is unclear, however its presence should alert radiologists to the possibility of COVID-19 infection.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7834213 | PMC |
| http://dx.doi.org/10.1016/j.clinimag.2020.07.024 | DOI Listing |
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