Abstract
CT halo sign is a CT finding of ground-glass opacity surrounding a nodule or mass. It was first described as a sign of hemorrhage around foci of invasive pulmonary aspergillosis [1] (Fig. 6.1).
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Lee, K.S., Han, J., Chung, M.P., Jeong, Y.J. (2014). CT Halo Sign. In: Radiology Illustrated: Chest Radiology. Radiology Illustrated. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-37096-0_6
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DOI: https://doi.org/10.1007/978-3-642-37096-0_6
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