title: Nontraumatic mediastinitis.
mesh_terms: D000208:Acute Disease; D006801:Humans; D008297:Male; D008480:Mediastinitis / Q000209:etiology*; D008875:Middle Aged; D010612:Pharyngitis / Q000382:microbiology; D010614:Pharynx / Q000382:microbiology; D013183:Sputum / Q000382:microbiology; D013290:Streptococcal Infections; D013297:Streptococcus pyogenes / Q000302:isolation & purification