title: Enlarging mediastinal mass.
mesh_terms: D000368:Aged; D000783:Aneurysm / Q000000981:diagnostic imaging* / Q000473:pathology; D001014:Aortic Aneurysm / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D004373:Ductus Arteriosus / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed