title: The aurora sign in a patient with type B Niemann-Pick disease.
abstract: The aurora sign, a sonographic sign found on the sagittal and transverse view, refers to multiple bands of ring-down artifacts posterior to the right hemidiaphragm. Parenchymal lung disease should be suspected when this is present. We report a case of type B Niemann-Pick disease with pulmonary involvement and the aurora sign on abdominal sonography. High-resolution CT of the chest showed corresponding thickened interlobular septa.
authors.affiliation: Departamento de Radiologia, Instituto Materno Infantil Professor Fernando Figueira, Recife, Pernambuco, Brazil. eduardojust@ig.com.br
authors.forename: Eduardo Just
authors.initials: EJ
authors.lastname: da Costa e Silva
authors.forename: Sílvio
authors.initials: S
authors.lastname: Cavalcanti de Albuquerque
authors.forename: Eduardo Luiz
authors.initials: EL
authors.lastname: de Queiroz Praxedes
authors.forename: Fernando José
authors.initials: FJ
authors.lastname: do Amaral
mesh_terms: D016477:Artifacts; D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008297:Male; D052537:Niemann-Pick Disease, Type B / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography