title: Pleural-based mass in an elderly man with arthralgias.
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D014890:Granulomatosis with Polyangiitis / Q000150:complications / Q000000981:diagnostic imaging; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging*; D008297:Male; D010146:Pain / Q000000981:diagnostic imaging*; D010994:Pleura / Q000000981:diagnostic imaging; D010995:Pleural Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D014057:Tomography, X-Ray Computed