J Korean Assoc Oral Maxillofac Surg 2017; 43(3): 147~151
The effectiveness of elective neck dissection on early (stage I, II) squamous cell carcinoma of the oral tongue
Ki-Woong Sung, Soung Min Kim, Hoon Myoung, Myung-Jin Kim, Jong-Ho Lee
Oral Cancer Center, Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, Korea
Jong-Ho Lee
Department of Oral and Maxillofacial Surgery, Clinical Trial Center and Oral Cancer Center, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
TEL: +82-2-2072-2630 FAX: +82-2-766-4948 E-mail: leejongh@snu.ac.kr ORCID: http://orcid.org/0000-0002-8843-545X
Received August 18, 2016; Revised November 23, 2016; Accepted December 4, 2016.; Published online June 30, 2017.
© Korean Association of Oral and Maxillofacial Surgeons. All rights reserved.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
 Abstract
Objectives: The purpose of this study was to evaluate and compare the treatment outcomes of partial glossectomy with or without elective neck dissection in patients with tongue squamous cell carcinoma (SCCa).
Materials and Methods: A total of 98 patients who were diagnosed with tongue SCCa and underwent partial glossectomy between 2005 and 2014 were evaluated. Only 14 patients received elective neck dissection, and 84 patients received only partial glossectomy.
Results: There were 56 men and 42 women with a mean age of 57 years and mean follow-up period of 33.7 months. There were 70 patients graded as T1 and 28 as T2. The total occult metastasis rate was 17.3%. The 5-year overall survival rate was 83.3% with elective neck dissection and 92.4% with observation. The 5-year disease-free survival rate was in 70.7% in the elective neck dissection group and 65.3% in the observation group.
Conclusion: We retrospectively reviewed the records of 98 patients with tongue SCCa. These patients were divided into two groups, those who underwent elective neck dissection and those who did not. There was no statistically significant difference between the groups undergoing partial glossectomy with or without elective neck dissection.
Keywords: Occult neck metastasis, Elective neck dissection, N0 neck, Squamous cell carcinoma of the tongue


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