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Pulmonary histoplasmosis presenting with the reversed halo sign on high-resolution CT scan
Edson Marchiori1, Saulo Maia Davila Melo2, Flávia Gavinho Vianna1
1Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Abstract:
We describe the case of a 23-year-old man with pulmonary histoplasmosis whose high-resolution CT scan demonstrated the reversed halo sign. We also extensively review the literature about this CT scan sign. The reversed halo sign has been described in a number of diseases, both infectious and noninfectious. However, to our knowledge, this is the first reported case of pulmonary histoplasmosis presenting with this radiologic finding.
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