Reversed halo sign as a radiological feature of tuberculosis – Report of two cases

Reversed halo sign (RHS) is a radiological feature described as a focal, rounded area of ground-glass opacity surrounded by a ring of consolidation. In this report we describe two unique radiological cases demonstrating diffuse bilateral infiltrates with multiple RHSs in chest CT scans. Both patient...

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Published inRespiratory medicine case reports Vol. 51; p. 102088
Main Authors Rakedzon, Stav, Mor, Elad, Dotan, Yaniv, Guralnik, Ludmila, Solomonov, Anna, Fireman Klein, Einat, Kramer, Mordechai Reuven
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 01.01.2024
Elsevier
Subjects
Case Report
Ground-glass opacity
Reversed halo sign
Silica
Silicosis
Tuberculosis
Tuberculosis
Reversed halo sign
Silica
Silicosis
Ground-glass opacity
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Summary:Reversed halo sign (RHS) is a radiological feature described as a focal, rounded area of ground-glass opacity surrounded by a ring of consolidation. In this report we describe two unique radiological cases demonstrating diffuse bilateral infiltrates with multiple RHSs in chest CT scans. Both patients were ultimately diagnosed as having tuberculosis (TB) and had been exposed to silica in the past. This report presents for the first time an association between silica exposure and RHS on CT scans among TB patients. It highlights the importance of having a high index of suspicion for TB in similar scenarios.
Bibliography:ObjectType-Case Study-2
SourceType-Scholarly Journals-1
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ISSN:2213-0071
2213-0071
DOI:10.1016/j.rmcr.2024.102088