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Case Reports
. 2010 Mar;83(987):e58-60.
doi: 10.1259/bjr/22699201.

Pulmonary tuberculosis associated with the reversed halo sign on high-resolution CT

E Marchiori  1 , R D Grando, C E Simões Dos Santos, L Maffazzioli Santos Balzan, G Zanetti, C M Mano, R S Gutierrez
Affiliations
Case Reports

Pulmonary tuberculosis associated with the reversed halo sign on high-resolution CT

E Marchiori et al. Br J Radiol. 2010 Mar.

Abstract

We describe the case of a 32-year-old woman with pulmonary tuberculosis in whom a high-resolution CT scan demonstrated the reversed halo sign. The diagnosis of tuberculosis was made by lung biopsy and the detection of acid-fast bacilli in the sputum smear and culture. Follow-up assessment revealed a significant improvement in the lesions.

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Figures

Figure 1
Figure 1
A high-resolution CT scan showing patchy consolidations and ground-glass opacities in both lungs, with a cavitation in the right upper lobe (a). Opacities with central areas of ground-glass attenuation surrounded by denser crescentic consolidations of at least 2 mm thickness (reversed halo sign; arrows) are seen in the lower lobes (b,c). These areas are admixed with poorly defined nodules. No lymphadenopathy is evident.
Figure 2
Figure 2
A follow-up high-resolution CT scan, obtained three months after the first examination with scans of the same level of Figure 1b (a) and Figure 1c (b), shows significant improvement in the opacities.
See this image and copyright information in PMC

References

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