Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 Mar-Apr;37(2):182-183.
doi: 10.4103/lungindia.lungindia_360_19.

Reversed halo sign: Uncommon presentation of a common disease

Affiliations

Reversed halo sign: Uncommon presentation of a common disease

Bijay Pattnaik et al. Lung India. 2020 Mar-Apr.
No abstract available

PubMed Disclaimer

Conflict of interest statement

None

Figures

Figure 1
Figure 1
High-resolution computed tomography thorax image (lung window section) showing bilateral lower lobe consolidation with central ground-glass opacity and denser peripheral rim of consolidation suggestive of reversed halo sign
Figure 2
Figure 2
Chest radiograph (pretreatment) showing bilateral basal alveolar opacities (left panel), post-2 months' treatment radiograph (middle panel) showing improvement, and follow-up radiograph (right panel) showing complete clearance of consolidations and a normal radiographic appearance

References

    1. Maturu VN, Agarwal R. Reversed halo sign: A systematic review. Respir Care. 2014;59:1440–9. - PubMed
    1. Godoy MC, Viswanathan C, Marchiori E, Truong MT, Benveniste MF, Rossi S, et al. The reversed halo sign: Update and differential diagnosis. Br J Radiol. 2012;85:1226–35. - PMC - PubMed
    1. Marchiori E, Zanetti G, Hochhegger B, Irion KL. Sarcoidosis and the reversed halo sign. Radiographics. 2011;31:892–3. - PubMed
    1. Marchiori E, Zanetti G, Mano CM, Hochhegger B, Irion KL. The reversed halo sign: Another atypical manifestation of sarcoidosis. Korean J Radiol. 2010;11:251–2. - PMC - PubMed
    1. Marchiori E, Zanetti G, Irion KL, Nobre LF, Hochhegger B, Mançano AD, et al. Reversed halo sign in active pulmonary tuberculosis: Criteria for differentiation from cryptogenic organizing pneumonia. AJR Am J Roentgenol. 2011;197:1324–7. - PubMed