V The Prevalence , Clinicopathologic Features , and Surgical Outcomes according to the Extent of Thyroidectomy in Differentiated Thyroid Cancer > 1 and < 4 cm 1

From April 1967 to December 2011, a total of 16,065 DTC patients underwent thyroidectomy at Yonsei University Hospital. Among them, 5,427 (33.7%) patients were classified as having DTC > 1 and < 4 cm and were enrolled in this study. Clinicopathologic features and prognostic results (disease-free and disease-specific survival rates) were analyzed by retrospective medical chart review. The mean follow-up duration was 57.3 ± 58.1 months.