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Title: The Reversed Halo Sign on High-Resolution CT in Infectious and Noninfectious Pulmonary Diseases
Authors: Marchiori, Edson
Zanetti, Glaucia
Meirelles, Gustavo Souza Portes [UNIFESP]
Escuissato, Dante Luiz
Souza, Arthur Soares
Hochhegger, Bruno
Universidade Federal Fluminense (UFF)
Universidade Federal do Rio de Janeiro (UFRJ)
Universidade Federal de São Paulo (UNIFESP)
Univ Fed Parana
Universidade de São Paulo (USP)
Keywords: high-resolution CT
infectious pulmonary diseases
noninfectious pulmonary diseases
reversed halo sign
Issue Date: 1-Jul-2011
Publisher: Amer Roentgen Ray Soc
Citation: American Journal of Roentgenology. Reston: Amer Roentgen Ray Soc, v. 197, n. 1, p. W69-W75, 2011.
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.
ISSN: 0361-803X
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Appears in Collections:Em verificação - Geral

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