Background: To investigate the risk factors of cervical lymph node (LN) metastasis in papillary thyroid microcarcinoma\n(PTMC) patients.\nMethods: We retrospectively analyzed the clinicopathologic data of all patients who received standard lobectomy\nfor PTMC at our institution between October 2017 and January 2019. Central LNs were dissected in all patients. Lateral\nLNs were dissected if metastasis to the lateral LNs was suggested based on pre-op fine-needle aspiration biopsy. The\nrelationship between variables available prior to surgery and cervical LN metastasis was examined using multivariate\nregression.\nResults: Post-op pathologic examination revealed cervical LN metastasis in 79 (29.5%) patients. Seventy subjects had\nmetastasis only to central LNs, and 4 (1.5%) patients had metastasis only to lateral LNs. Five patients had metastasis to\nboth central and lateral LNs........................................
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