The Reversed Halo Sign on High-Resolution CT in Infectious and Noninfectious Pulmonary Diseases
- 1 July 2011
- journal article
- Published by American Roentgen Ray Society in American Journal of Roentgenology
- Vol. 197 (1), W69-W75
- https://doi.org/10.2214/ajr.10.5762
Abstract
OBJECTIVE. The purpose of this article is to describe diseases that may present with the reversed halo sign on high-resolution CT. We emphasize the tomographic features most frequently associated with this sign and correlate them with histologic findings. CONCLUSION. A wide spectrum of infectious and noninfectious diseases may present with the reversed halo sign on chest CT. The nonspecific nature of this sign should not cloud an otherwise fairly straightforward diagnosis, especially when associated background findings are typical. Although a rigorous analysis of associated CT findings may help with the differential diagnosis, histologic assessment is often needed for a definitive determination of the cause.Keywords
This publication has 14 references indexed in Scilit:
- Paracoccidioidomycosis: High-resolution computed tomography–pathologic correlationEuropean Journal of Radiology, 2011
- Re: Reversed halo sign: nodular wall as criterion for differentiation between cryptogenic organizing pneumonia and active granulomatous diseasesClinical Radiology, 2010
- Pulmonary tuberculosis associated with the reversed halo sign on high-resolution CTThe British Journal of Radiology, 2010
- “Reversed Halo Sign” of High-resolution Computed Tomography in Pulmonary SarcoidosisJournal of Thoracic Imaging, 2009
- Reversed Halo Sign in Invasive Pulmonary Fungal InfectionsClinical Infectious Diseases, 2008
- Another cause of reverse halo sign: Wegener's granulomatosisThe British Journal of Radiology, 2007
- Reversed halo sign in lymphomatoid granulomatosisThe British Journal of Radiology, 2007
- Reversed Halo Sign in Pulmonary ParacoccidioidomycosisAmerican Journal of Roentgenology, 2005
- Reversed Halo Sign on High-Resolution CT of Cryptogenic Organizing Pneumonia: Diagnostic ImplicationsAmerican Journal of Roentgenology, 2003
- Spectrum of Pulmonary Aspergillosis: Histologic, Clinical, and Radiologic FindingsRadioGraphics, 2001