title: Photo quiz. Diagnosis: apical fibrocavitary disease associated with ankylosing spondylitis.
authors.affiliation: Department of Infectious Diseases, Emory University School of Medicine, Decatur, Georgia, USA.
authors.forename: C
authors.initials: C
authors.lastname: Franco
authors.forename: R
authors.initials: R
authors.lastname: Jurado
mesh_terms: D003937:Diagnosis, Differential; D006469:Hemoptysis / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D011658:Pulmonary Fibrosis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013902:Radiography, Thoracic; D013167:Spondylitis, Ankylosing / Q000175:diagnosis* / Q000000981:diagnostic imaging