颈深间隙感染如果未得到及时的诊断与治疗会引起致命性并发症，包括气道压迫、颈静脉血栓、纵隔炎、心包炎、肺炎、脓胸、动脉受侵及颅内感染。颈深间隙感染（DNSI）又分为牙源性与非牙源性，目前牙源性感染已成为DNSI最重要的的原因之一。作者注意到牙源与非牙源性感染蔓延引 Deep space infection can lead to fatal complications without timely diagnosis and treatment, including airway pressure, jugular vein thrombosis, mediastinitis, pericarditis, pneumonia, empyema, arterial invasion and intracranial infection. Deep neck dissection (DNSI) is divided into odontogenic and non-odontogenic, the current source of infection has become DNSI one of the most important reasons. The authors note the spread of dental and non-odontogenic infections