头颈部筋膜间隔是筋膜层之间的潜在腔隙。当感染进入间隙时,脓肿可能侵犯由筋膜包绕的重要器官。由于颈部筋膜层次较多,感染可从多处进入,而使颈深间隙(DNS)感染复杂化。其扩展途径通过淋巴管、血管或直接蔓延,可引起致死性并发症。本文对8例DNS感染的临床表现、诊断和处理方针作了讨论,并简要复习了颈部解剖。 The head and neck fascia space is a potential cavity between the fascia layers. When the infection enters the gap, the abscess may invade vital organs surrounded by fascia. Due to the high level of cervical fascia, infections can enter from multiple places, complicating deep neck clearance (DNS) infection. Its expansion pathway through lymphatic vessels, blood vessels or direct spread can cause fatal complications. This article discusses the clinical manifestations, diagnosis and treatment guidelines for 8 cases of DNS infection, and briefly reviews the neck anatomy.