Journal of Peking University(Health Sciences) ›› 2017, Vol. 49 ›› Issue (6): 1050-1054. doi: 10.3969/j.issn.1671-167X.2017.06.020

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Clinical analysis of cervical lymph node metastasis of cN0 maxillary malignant tumor

SUN Qian1, ZHANG Wen-bo1, GAO Min1, YU Sen2, MAO Chi1, GUO Chuan-bin1, YU Guang-yan1, PENG Xin1△   

  1. (1. Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China; 2. Department of Oral and Maxillofacial Surgery, Second Clinical Division, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100101, China)
  • Online:2017-12-18 Published:2017-12-18
  • Contact: PENG Xin E-mail: pxpengxin@263.net
  • Supported by:
    Supported by the National Science & Technology Pillar Program (2014BAI04B06)

Abstract: Objective: To investigate the cervical lymphatic metastasis rates of clinically negative neck lymph node (cN0) maxillary malignant tumors, to compare the cervical lymphatic metastasis rates of the various pathological types, and to provide the reference for the treatment of the neck of the patients with cN0 maxillary malignant tumor. Methods: The clinical data of 277 cases with cN0 maxillary malignant tumor, treated in the department of oral and maxillofacial surgery of Peking University School and Hospital of Stomatology from 1990 to 2010, were reviewed. The cervical lymph node metastasis and the related clinical information were recorded. The clinical information including histopathology type of the tumors, tumor grade, primary site and TNM staging, as well as other demographic and clinical data, were retrieved from the electronic medical record system (EMRS) of the hospital. The pathogenesis of cervical lymph node metastasis in maxillary malignant tumors of different histopathological types, and the factors related to lymph node metastasis of upper cervical malignancy were analyzed by SPSS 19.0 statistical software. Results: The overall cervical lymph node metastasis rate of the 277 patients with cN0 maxillary malignant tumor was 15.5% (43/277). Maxillary squamous cell carcinoma (SCC) had a strong cervical lymph node metastasis tendency and the rate was 33.0%. The overall metastatic rate of adenocarcinoma was 7.6% lower than that of SCC, and the occurrence of cervical lymph node metastasis time was relatively late, but the metastasis rate of highly malignant grade salivary gland carcinoma was significantly higher than that of intermediate and low grade carcinoma (P=0.037). The metastatic rates of some highly malignant cN0 salivary gland carcinomas including adenocarcinoma, not other specified, high-grade mucoepidermoid carcinoma (MEC), and salivary duct carcinoma were exceeded 15%, while the metastasis rates of adenoid cystic carcinoma and myoepithelial carcinoma were lower. The metastasis rate of the sarcomas was very low with the rate of 4.9%. Conclusion: Selective neck dissection (SND) is recommended for cN0 maxillary SCC and feasible for some highly malignant cN0 salivary gland carcinomas including adenocarcinoma, not other specified, highgrade MEC, salivary duct carcinoma. The neck can be closely observed for the patients with maxillary sarcoma.

Key words: Lymph nodes, Maxillary neoplasms, Lymphatic metastasis, Neck

CLC Number: 

  • R739.8
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