title: Nodular Legionnaire disease.
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D004653:Empyema / Q000382:microbiology; D006801:Humans; D007875:Legionella / Q000302:isolation & purification; D007877:Legionnaires' Disease / Q000175:diagnosis* / Q000382:microbiology; D008175:Lung Neoplasms / Q000175:diagnosis; D008297:Male