CND incorporating both level VI and level VII can be undertaken safely through a cervical incision with no increased risk of permanent complications of hypoparathyroidism or recurrent laryngeal nerve injury. Failure to include level VII as part of CND will leave significant macrometastatic nodal disease behind in both therapeutic and prophylactic dissections. As level VII is in direct anatomic continuity with the pretracheal level VI nodes, it should be routinely included as part of every CND.
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