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Gaeta Michele; Volta, Santi; Stroscio, Salvatore; Romeo, Placido; Pandolfo, Ignazio
Journal of Computer Assisted Tomography: September 1992
Case Report: PDF Only

The CT halo sign has been described as the CT finding of a low-attenuation zone surrounding a pulmonary nodule. It is an early clue to the diagnosis of invasive pulmonary aspergillosis. We describe a case of CT halo sign associated with a pulmonary tuberculoma. Therefore, we think that a diagnosis other than invasive pulmonary aspergillosis should be considered in the presence of the CT halo sign in immunocompetent patients.

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