Retropharyngeal haemorrhage.
D006470:Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male; D008477:Mediastinal Diseases / Q000209:etiology; D008875:Middle Aged; D019838:Neck Injuries; D010608:Pharyngeal Diseases / Q000209:etiology*; D014949:Wounds, Nonpenetrating / Q000150:complications*