Ferlito A, Rinaldo A
Department of Otolaryngology-Head and Neck Surgery, University of Udine, Italy.
J Laryngol Otol. 1998 May;112(5):438-40. doi: 10.1017/s0022215100140721.
Squamous cell carcinoma of the larynx and hypopharynx tends to metastasize frequently to cervical lymph nodes, the location of which depends mainly on the site of the primary lesion. Five anatomical levels of cervical nodes have consequently been defined to standardize the terminology used to describe which lymph node groups are at risk for metastatic spread. Level I includes the submental and submandibular triangles. This review considers the role of these triangles in neck dissection and concludes that, unless there is clear evidence of spread, the inclusion of the level I triangles in the neck dissection is unwarranted since these nodes are not really at risk. There is therefore an important role for selective neck dissection in suitable cases of squamous cell carcinoma of the larynx and hypopharynx.
喉和下咽鳞状细胞癌往往频繁转移至颈部淋巴结，其转移部位主要取决于原发病变的部位。因此，已定义了颈部淋巴结的五个解剖层面，以规范用于描述哪些淋巴结组有转移扩散风险的术语。第一层面包括颏下三角和下颌下三角。本综述探讨了这些三角区在颈部清扫术中的作用，并得出结论：除非有明确的扩散证据，否则在颈部清扫术中纳入第一层面三角区是不必要的，因为这些淋巴结并非真正处于风险之中。因此，在合适的喉和下咽鳞状细胞癌病例中，选择性颈部清扫术具有重要作用。
