title: Legionnaires' disease presenting with empyema.
abstract: Legionnaire's disease presenting as empyema has not been previously described, although pleural effusions are not uncommon. A 56-year-old woman had a ten-day history of pleuritic chest pain and a large loculated empyema. Legionnaires' disease was documented by serum indirect fluorescent antibody studies.
mesh_terms: D003937:Diagnosis, Differential; D004653:Empyema / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007877:Legionnaires' Disease / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008875:Middle Aged; D011859:Radiography