Pulmonary target sign - COVID-19
Fever, cough, myalgia, and anosmia. (Patient RT-PCR test was positive for COVID-19)
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Non-contrast CT scan of the chest demonstrates multifocal, bilateral, predominantly peripheral ground-glass opacities, and multiple nodular opacities, surrounded by a less dense rim which is surrounded by a denser concentric ring-like rim in some peripheral regions of the lower lobes of the lungs.
Ground glass opacity is definitely the most common finding in COVID-19 infections. They are usually multifocal, bilateral, and peripheral.
The pulmonary target sign is described as nodular opacity in the center of a ring-like opacity in the lung parenchyma in patients with pneumonia caused by the coronavirus. Also, the possibility of this finding being unique remains unclear.
- 1. Müller CIS - Müller NL. Chest CT target sign in a couple with COVID-19 pneumonia. Radiol Bras. 2020; 53: 252-254
- 2. Jafari R - P MC - Saburi A "Rings of Saturn" appearance: a unique finding in a case of COVID-19 pneumonitis. Diagn Interv Radiol. 2020; 7: 20266
- 3. Wu J - Feng CL - Xian XY - et al. [Novel coronavirus pneumonia (COVID-19) CT distribution and sign features]. Zhonghua Jie He He Hu Xi Za Zhi. 2020; 43: E030
- 4. Guan CS - Lv ZB - Yan S - et al. Imaging features of Coronavirus disease 2019 (COVID-19): evaluation on thin-section CT. Acad Radiol. 2020; 27: 609-613