The “Target Sign” in a 46-Year-Old Patient with COVID-19 Pneumonia

COVID-19 has various imaging manifestations, most commonly peripheral ground-glass opacities with a basilar posterior predominance. Less common imaging manifestations include consolidations, findings typical of organizing pneumonia, such as “halo” or a “reverse halo” sign, and vascular enlargement....

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Autores principales: Alexandra Pérez Pérez, Rahul Lazarus, Anju Dubey
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Publicado: Hindawi Limited 2021
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spelling oai:doaj.org-article:8c7e0fd6f75c4789b727670781eeb4a72021-11-08T02:36:33ZThe “Target Sign” in a 46-Year-Old Patient with COVID-19 Pneumonia2090-687010.1155/2021/9956927https://doaj.org/article/8c7e0fd6f75c4789b727670781eeb4a72021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/9956927https://doaj.org/toc/2090-6870COVID-19 has various imaging manifestations, most commonly peripheral ground-glass opacities with a basilar posterior predominance. Less common imaging manifestations include consolidations, findings typical of organizing pneumonia, such as “halo” or a “reverse halo” sign, and vascular enlargement. Our case describes a “target sign” on CT, which is uncommon but is increasingly being recognized. The target sign consists of a central nodular opacity with surrounding ground-glass opacity, then a surrounding relatively lucent ring, and a more peripheral ring of consolidation or ground-glass opacification. This may be the sequela of focal vascular enlargement, endothelial injury, microangiopathy, and perivascular inflammation. The case described involves a 46-year-old male who presented with subjective fevers, nonproductive cough, and hypoxia, subsequently diagnosed with COVID-19. CT imaging performed as part of initial work-up revealed multifocal ground-glass opacities scattered throughout the lung parenchyma, as well as multiple target sign lesions. Although it is a rare finding, the target sign, when present, may suggest the diagnosis of COVID-19.Alexandra Pérez PérezRahul LazarusAnju DubeyHindawi LimitedarticleMedical physics. Medical radiology. Nuclear medicineR895-920ENCase Reports in Radiology, Vol 2021 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medical physics. Medical radiology. Nuclear medicine
R895-920
spellingShingle Medical physics. Medical radiology. Nuclear medicine
R895-920
Alexandra Pérez Pérez
Rahul Lazarus
Anju Dubey
The “Target Sign” in a 46-Year-Old Patient with COVID-19 Pneumonia
description COVID-19 has various imaging manifestations, most commonly peripheral ground-glass opacities with a basilar posterior predominance. Less common imaging manifestations include consolidations, findings typical of organizing pneumonia, such as “halo” or a “reverse halo” sign, and vascular enlargement. Our case describes a “target sign” on CT, which is uncommon but is increasingly being recognized. The target sign consists of a central nodular opacity with surrounding ground-glass opacity, then a surrounding relatively lucent ring, and a more peripheral ring of consolidation or ground-glass opacification. This may be the sequela of focal vascular enlargement, endothelial injury, microangiopathy, and perivascular inflammation. The case described involves a 46-year-old male who presented with subjective fevers, nonproductive cough, and hypoxia, subsequently diagnosed with COVID-19. CT imaging performed as part of initial work-up revealed multifocal ground-glass opacities scattered throughout the lung parenchyma, as well as multiple target sign lesions. Although it is a rare finding, the target sign, when present, may suggest the diagnosis of COVID-19.
format article
author Alexandra Pérez Pérez
Rahul Lazarus
Anju Dubey
author_facet Alexandra Pérez Pérez
Rahul Lazarus
Anju Dubey
author_sort Alexandra Pérez Pérez
title The “Target Sign” in a 46-Year-Old Patient with COVID-19 Pneumonia
title_short The “Target Sign” in a 46-Year-Old Patient with COVID-19 Pneumonia
title_full The “Target Sign” in a 46-Year-Old Patient with COVID-19 Pneumonia
title_fullStr The “Target Sign” in a 46-Year-Old Patient with COVID-19 Pneumonia
title_full_unstemmed The “Target Sign” in a 46-Year-Old Patient with COVID-19 Pneumonia
title_sort “target sign” in a 46-year-old patient with covid-19 pneumonia
publisher Hindawi Limited
publishDate 2021
url https://doaj.org/article/8c7e0fd6f75c4789b727670781eeb4a7
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