title: An abnormal chest x-ray.
mesh_terms: D006801:Humans; D008297:Male; D008482:Mediastinum / Q000000981:diagnostic imaging; D008875:Middle Aged; D013902:Radiography, Thoracic; D013945:Thymoma / Q000000981:diagnostic imaging*; D013953:Thymus Neoplasms / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed