title: 'Felson Signs' revisited.
abstract: In this article we revisit, with the help of images, those classic signs in chest radiography described by Dr Benjamin Felson himself, or other illustrious radiologists of his time, cited and discussed in 'Chest Roentgenology'. We briefly describe the causes of the signs, their utility and the differential diagnosis to be considered when each sign is seen. Wherever possible, we use CT images to illustrate the basis of some of these classic radiographic signs.
authors: Department of Radiology, CMC Hospital, Vellore, Tamil Nadu, India.
authors: Phiji Philip
authors: PP
authors: George
authors: Aparna
authors: A
authors: Irodi
authors: Shyamkumar
authors: S
authors: Nidugala Keshava
authors: Anthony C
authors: AC
authors: Lamont
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008297:Male; D011247:Pregnancy; D013902:Radiography, Thoracic / Q000379:methods*; D013896:Thoracic Diseases / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*
keywords: CT; chest; imaging; radiography; sign