title: Empyema with alkaline pH.
mesh_terms: D000293:Adolescent; D004653:Empyema / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D010996:Pleural Effusion / Q000032:analysis*; D014948:Wounds, Gunshot / Q000150:complications