title: CT halo sign in metastasis of osteosarcoma.
authors.forename: N
authors.initials: N
authors.lastname: Tomiyama
authors.forename: J
authors.initials: J
authors.lastname: Ikezoe
authors.forename: M
authors.initials: M
authors.lastname: Miyamoto
authors.forename: K
authors.initials: K
authors.lastname: Nakahara
mesh_terms: D000293:Adolescent; D005260:Female; D005266:Femoral Neoplasms / Q000473:pathology; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary; D012516:Osteosarcoma / Q000000981:diagnostic imaging / Q000556:secondary*; D011859:Radiography; D003074:Solitary Pulmonary Nodule / Q000000981:diagnostic imaging* / Q000556:secondary