Radiology Case Reports (Sep 2021)

Simultaneous presence of the “bullseye” and “reversed halo” sign at CT of COVID-19 pneumonia: A case report

  • Athanasios Giannakis,
  • Dorottya Móré, Dr.,
  • David Lukas Mangold,
  • Oyunbileg von Stackelberg, Dr.,
  • Roman Rubtsov,
  • Claus Peter Heussel, Prof.,
  • Hans-Ulrich Kauczor, Prof.,
  • Mark Oliver Wielpütz, Prof.,
  • Katharina Hellbach, PD

Journal volume & issue
Vol. 16, no. 9
pp. 2442 – 2446

Abstract

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The “bullseye” sign has been exclusively reported in patients suffering from coronavirus disease 2019 (COVID-19) pneumonia. It is theorized that this newly recognized computed tomography (CT) feature represents a sign of organizing pneumonia. Well established signs of organizing pneumonia also reported in COVID-19 patients include linear opacities, the “reversed halo” sign (or “atoll” sign), and a perilobular distribution of abnormalities. These findings are usually present on imaging in the intermediate and late stage of the disease. This is a case of simultaneous presence of the “bullseye” and the “reversed halo” sign on chest CT images of a COVID-19 patient examined 22 days after symptom onset.

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