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Journal of Oncology
Volume 2011, Article ID 735678, 5 pages
http://dx.doi.org/10.1155/2011/735678
Research Article

Patterns of Cervical Lymph Node Metastases in Primary and Recurrent Papillary Thyroid Cancer

Department of Otolaryngology-Head and Neck Surgery, Georgetown University Hospital, Washington, DC 20007, USA

Received 29 June 2011; Revised 19 September 2011; Accepted 24 September 2011

Academic Editor: David Ball

Copyright © 2011 Neda Ahmadi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The incidence of thyroid cancer is rising in the United States with papillary thyroid cancer (PTC) being the most common type. We performed a retrospective study of 49 patients with PTC who underwent 57 lateral neck dissections (NDs). The extent of NDs varied, but 29 of 57 (51%) consisted of levels II–V. Twelve of 57 (21%) NDs consisted of levels I–V. Twelve of 57 (21%) NDs consisted of levels II–IV. One of 57 (1.8%) necks involved only levels I–IV. One of 57(1.8%) necks involved only levels I–V. One of 57(1.8%) necks involved only levels III–V. Two (3.5%) double-level (III–IV) neck surgeries were also performed. Metastatic PTC adenopathy was confirmed pathologically in 2%-level-I, 45%-level-II, 57%-level-III, 60%-level-IV, and 22%-level-V necks. Level-V was positive in 21% of primary and 24% of recurrent groups ( 𝑃 = 0 . 7 6 ). Comparing primary and recurrent disease, there was no difference in nodal distribution or frequency for levels I, II, III, and V. Level-IV was more common in the recurrent cases ( 𝑃 = 0 . 0 5 ). Based on the pathologic distribution of nodes, dissection should routinely include levels II–IV and extend to level-V in primary and recurrent cases. Our data does not suggest routine dissection of level-I.