Effect of primary site for oral and maxillary squamous cell carcinoma on location of neck node metastasis / 北京大学学报(医学版)

ABSTRACT

Objective:To analyze the predilection of metastasis at levels Ⅰ,Ⅱ,Ⅲ, Ⅳ,Ⅴfor oral and maxillary squamous cell carcinoma on different primary sites .Methods: A retrospective review was conducted of the records of 1 233 patients ( 1 340 necks ) from January 2000 to December 2011 with squamous cell carcinoma simultaneously underwent primary tumor resection and neck dissection in De -partment of Oral and Maxillary Surgery , Peking University School and Hospital of Stomatology .The to-pography of positive neck node was recorded , and the calculation was performed for the metastasis rate of levels Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴbased on the primary site , respectively .Results:There were 557 necks with positive node (41.57%), and the metastasis rate for level Ⅰ, Ⅱ, Ⅲ, Ⅳ, and Ⅴ were 27.61%, 22.91%, 9.18%, 4.99%, 3.24%, respectively.Those in level Ⅲ were at high risk for metastasis from carcinoma of tongue and the floor of mouth .The positive rate in level Ⅱwas more than that in levelⅠfor tongue carcinoma , but for inferior gingiva carcinoma , bucca carcinoma , upper gingiva carcinoma , palatine carcinoma , maxillary sinuse carcinoma , intraosseous carcinoma of mandibular , the positive node was more likely to happen at level Ⅰcompared with level Ⅱ.Conclusion: Most metastases happen in levels Ⅰ-Ⅲfor patients with oral and maxillary squamous cell carcinoma , but the predilection of metas-tasis in level Ⅰ,ⅡorⅢis varied with the primary sites .