男性 ,5 9岁 ,因“张口困难一周”入院 ,一周前无明显诱因 ,先有张口费力 ,逐渐加重 ,其间曾有左耳轻度钝痛 ,未引起重视。口服“消炎药”无效 ,以“左翼颌间隙感染”收入院。病程中无头痛、鼻血刃及鼻涕带血等症状。颌面外科检查 :左侧面颊及颌下轻度肿胀压痛 ,颈部及颌下未触 Male, 59 years old, was admitted to hospital due to “a difficult mouth for a week”. There was no obvious incentive a week ago. Oral “anti-inflammatory drugs” invalid, “left wing gap infection” income hospital. No headache during the course of the disease, nasal blood and nose and bloody nose and other symptoms. Maxillofacial surgery examination: left cheek and submandibular mild swelling tenderness, neck and submandibular did not touch