COVID-19 Infection Presenting with CT Halo Sign
2020; Radiological Society of North America; Volume: 2; Issue: 1 Linguagem: Inglês
10.1148/ryct.2020200026
ISSN2638-6135
AutoresXiaohu Li, Xiaosong Zeng, Bin Liu, Yongqiang Yu,
Tópico(s)SARS-CoV-2 and COVID-19 Research
ResumoHomeRadiology: Cardiothoracic ImagingVol. 2, No. 1 PreviousNext Images in Cardiothoracic ImagingFree AccessPulmonary ImagingCOVID-19 Infection Presenting with CT Halo SignXiaohu Li, Xiaosong Zeng, Bin Liu, Yongqiang Yu Xiaohu Li, Xiaosong Zeng, Bin Liu, Yongqiang Yu Author AffiliationsFrom Department of Radiology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, Anhui, China 230022 (X.L., B.L., Y.Y.) and the Department of Radiology, Suzhou Hospital Affiliated of Anhui Medical University, Suzhou, Anhui, China (X.Z.).Address correspondence to Y.Y. (e-mail: [email protected]).Xiaohu LiXiaosong ZengBin LiuYongqiang Yu Published Online:Feb 12 2020https://doi.org/10.1148/ryct.2020200026MoreSectionsPDF ToolsAdd to favoritesCiteTrack CitationsPermissionsReprints ShareShare onFacebookXLinked In A 27-year-old woman who worked in Wuhan, China presented to the hospital with a 4-day history of fever and cough. At admission, her body temperature was elevated to 38.5°C (101.3°F) and coarse breath sounds were heard during auscultation. Laboratory studies showed leucopenia, and positive sputum analysis using real-time reverse transcriptase fluorescence polymerase chain reaction confirmed infection by COVID-19 (formerly known as 2019 novel coronavirus [2019-nCoV]) (1,2). Noncontrast chest CTs obtained at admission and after 4 days of hospitalization (Figure) showed a right upper lobe nodule with ground-glass halo, which increased in size between studies, concurrently with the deterioration of clinical symptoms.Nonenhanced axial chest CT images in a 27-year-old woman. A, Image shows a solid nodule (*) surrounded by a ground-glass halo in the posterior right upper lobe segment (arrows). B, Image at the same level as in A, obtained 4 days after, shows increase in size of the solid nodule (*), with development of small peripheral air bronchograms.Download as PowerPointA recent case series (3) identified involvement of multiple lobes and predominance of ground-glass opacities as radiologic hallmarks of the outbreak of COVID-19 pneumonia on CT. The CT halo sign has been classically described in hemorrhagic nodules, typically seen in angioinvasive fungal infections, hypervascular metastases, and vasculitides; however, viral infections and organizing pneumonia are known differential causes for the halo sign (4). The present case highlights CT pattern that can be found within the spectrum of radiologic presentations of COVID-19 pneumonia.Disclosures of Conflicts of Interest: X.L. disclosed no relevant relationships. X.Z. disclosed no relevant relationships. B.L. disclosed no relevant relationships. Y.Y. disclosed no relevant relationships.Keywords: Adults, CT, Lung, Thorax This study was supported by the Anhui Natural Science Foundation (20200410702003)References1. Zhu N, Zhang D, Wang W, et al. A Novel Coronavirus from Patients with Pneumonia in China, 2019. N Engl J Med 2020 Jan 24. doi: 10.1056/ NEJMoa2001017. [Epub ahead of print] Google Scholar2. Huang C, Wang Y, Li X, et al. Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China. Lancet 2020 [Epub ahead of print]. Google Scholar3. Lei J, Li J, Qi X. CT Imaging of the 2019 Novel Coronavirus (2019-nCoV) Pneumonia. Radiology 2020 (in press). Google Scholar4. Pinto PS. The CT halo sign. Radiology 2004;230(1):109−10. 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