title: The halo sign.
authors.affiliation: . Universidade Federal Fluminense, Niterói (RJ) Brasil.|. Universidade Federal do Rio de Janeiro, Rio de Janeiro (RJ) Brasil.
authors.forename: Edson
authors.initials: E
authors.lastname: Marchiori
authors.affiliation: . Santa Casa de Misericórdia de Porto Alegre, Porto Alegre (RS) Brasil.|. Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre (RS) Brasil.
authors.forename: Bruno
authors.initials: B
authors.lastname: Hochhegger
authors.affiliation: . Universidade Federal do Rio de Janeiro, Rio de Janeiro (RJ) Brasil.|. Faculdade de Medicina de Petrópolis, Petrópolis (RJ) Brasil.
authors.forename: Gláucia
authors.initials: G
authors.lastname: Zanetti
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D055744:Invasive Pulmonary Aspergillosis / Q000000981:diagnostic imaging; D008168:Lung / Q000000981:diagnostic imaging; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed