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Sub-Classification of Lateral Cervical Lymph Node Metastasis in Papillary Thyroid Carcinoma by Pathologic Criteria

Author

Listed:
  • Min Ji Jeon
  • Won Gu Kim
  • Eun Kyung Jang
  • Yun Mi Choi
  • Dong Eun Song
  • Tae-Yon Sung
  • Jong Ho Yoon
  • Ki-Wook Chung
  • Suck Joon Hong
  • Jin-Sook Ryu
  • Ji Min Han
  • Tae Yong Kim
  • Young Kee Shong
  • Won Bae Kim

Abstract

Background: Lateral cervical lymph node (LCLN) metastasis, or pathologic N1b disease, is an important risk factor in papillary thyroid carcinoma (PTC). However, many patients have favorable prognosis even with pathologic N1b patients in clinical practice. The study aims to identify high- and intermediate-risk groups based on initial pathologic characteristics in these patients. Patients: This study included 518 classical PTC patients confirmed as pathologic N1b at initial surgery between 2001 and 2010. All patients underwent a single fixed activity (5.6 GBq) of radioactive I-131 remnant ablation. Results: Patients with a primary tumor larger than 4 cm, gross extrathyroidal extension, metastatic LN larger than 3 cm, or greater than 10 metastatic LCLN were classified as high-risk group. These comprehensive pathologic criteria were retrieved from cox proportional hazard models. Twenty two percent of patients (n = 113) were classified as high-risk and 78% (n = 405) as intermediate-risk group. Successful ablation was identified in only 32% of the patients in the high-risk group and 61% in the intermediate-risk group (p

Suggested Citation

  • Min Ji Jeon & Won Gu Kim & Eun Kyung Jang & Yun Mi Choi & Dong Eun Song & Tae-Yon Sung & Jong Ho Yoon & Ki-Wook Chung & Suck Joon Hong & Jin-Sook Ryu & Ji Min Han & Tae Yong Kim & Young Kee Shong & Wo, 2015. "Sub-Classification of Lateral Cervical Lymph Node Metastasis in Papillary Thyroid Carcinoma by Pathologic Criteria," PLOS ONE, Public Library of Science, vol. 10(7), pages 1-12, July.
    • Handle: RePEc:plo:pone00:0133625
    DOI: 10.1371/journal.pone.0133625
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