Nodular reverse halo sign in active pulmonary tuberculosis: A rare CT feature? - 04/05/20

Doi : 10.1016/j.diii.2020.01.013

K. Martini ^a,^b, A. Loubet ^a, A. Bankier ^c, S. Bouam ^d, P. Morand ^e, L. Cassagnes ^f, M.-P. Revel ^a,^g,⁎ , G. Chassagnon ^a,^g
^a Department of Radiology, Cochin Hospital, 75014 Paris, France
^b Diagnostic and Interventional Radiology, University Hospital Zurich, 8091 Zürich, Switzerland
^c Department of Radiology, Beth Israel Deaconess Medical Center, MA 02215, USA
^d Department of Medical informatics, Cochin Hospital, 75014 Paris, France
^e Microbiology Department, Cochin Hospital, 75014 Paris, France
^f Department of Radiology, CHU Gabriel-Montpied, Institut Pascal, UMR6602 CNRS SIGMA, 63000 Clermont-Ferrand, France
^g Université de Paris, 75006 Paris, France

^⁎Corresponding author at: Department of Radiology, Hôpital Cochin, 27, rue du Faubourg-Saint-Jacques, 75014 Paris, France.Department of Radiology, Hôpital Cochin27, rue du Faubourg-Saint-JacquesParis75014France

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Abstract

Purpose

The purpose of this study was to investigate the prevalence of the nodular reverse halo sign (NRHS) in chest computed tomography (CT) in patients with active pulmonary tuberculosis.

Materials and methods

From March 2018 to March 2019, 29 consecutive patients with a culture-confirmed active pulmonary tuberculosis and who underwent chest CT examination during hospital-admission were retrospectively included in the study. There were 24 men and 5 women with a mean age of 40.9±16.7 (SD) years (range: 18–80years). Chest CT examinations of included patients were evaluated for the presence of NRHS and other tuberculosis-related CT signs.

Results

CT revealed the NRHS in 5 patients (5/29; 17%). The other CT signs of tuberculosis included consolidations in 18 patients (18/29; 62%), tree-in-bud pattern in 14 patients (14/29; 48%), cavitation in 12 patients (12/29; 41%), sparse nodules in 10 patients (10/29; 34%), and pleural effusion in 8 patients (8/29; 28%).

Conclusion

CT shows NRHS in 17% of patients with active pulmonary tuberculosis, indicating that the sign is not as rare as previously thought in patients with this condition.

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Keywords : Reverse halo sign, Tuberculosis, Pulmonary, Computed tomography (CT), Pulmonary manifestations, Prevalence

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Esportazione

Vol 101 - N° 5

P. 281-287 - Maggio 2020 Ritorno al numero

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Nodular reverse halo sign in active pulmonary tuberculosis: A rare CT feature? - 04/05/20

Abstract

Purpose

Materials and methods

Results

Conclusion

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