Cervicofacial emphysema.
D004646:Emphysema / Q000209:etiology / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D008306:Malingering; D008887:Military Medicine / Q000266:history*; D009061:Mouth Mucosa / Q000293:injuries; D012652:Self Mutilation / Q000266:history; D006113:United Kingdom