Occult lymph node metastasis is common in micro papillary thyroid cancer. However, the role of lymph node dissection in the treatment of microPTC remains controversial. The investigators want to investigate the usefulness routine central dissection and sentinel lymph node biopsy in prognosis of micro PTC. This is a prospective randomized control study. The investigators started this study from May of 2009 and this study will be continued until Dec. 2011.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Is routine neck node dissection necessary in micro PTC?
Timeframe: Until 5 year follow-up. (Dec. 2016)