title: The reversed halo sign extending the spectrum of atypical radiological manifestations in sarcoidosis.
authors.affiliation: Department of Radiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil E-mail: edmarchiori@gmail.com.
authors.forename: Edson
authors.initials: E
authors.lastname: Marchiori
authors.affiliation: Department of Radiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil E-mail: edmarchiori@gmail.com.
authors.forename: Gláucia
authors.initials: G
authors.lastname: Zanetti
authors.affiliation: Department of Radiology, Hospital A.C. Camargo, São Paulo, Brazil.
authors.forename: Marcos
authors.initials: M
authors.lastname: Duarte Guimarães
authors.affiliation: Department of Radiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil E-mail: edmarchiori@gmail.com.
authors.forename: Bruno
authors.initials: B
authors.lastname: Hochhegger