Journal List > Korean J Endocr Surg > v.9(3) > 1060365

Lee, Lee, Kim, Kim, Lee, Kim, Ahn, Kim, and Lee: The Relationship between the p27 Expression of Papillary Thyroid Cancer Cells Obtained by FNA and Cervical Lymph Node Metastasis

Abstract

Purpose

The p27 gene as a tumor suppressor gene is associated with colorectal cancer, gastric cancer and breast cancer. Some studies have shown a relationship between the underexpression of p27 and lymph node metastasis in papillary thyroid carcinoma. The aim of this study is to evaluate the relationship between a p27 expression of the papillary thyroid cancer cells obtained by fine needle aspiration (FNA) and cervical lymph node metastasis.

Methods

This study included 60 patients with papillary thyroid cancer and who underwent total thyroidectomy or lobectomy. Central lymph node dissection was routinely done. Out of these patients, 30 patients underwent a FNA procedure during the operation. Immunohistochemical staining for p27 antibody was performed on the papillary thyroid cancer tissues and cells.

Results

Cervical lymph node metastasis is correlated with the tumor size and lymphovascular invasion (P<0.001). The underexpression of p27 for the papillary thyroid cancer tissues and cells was associated with lymph node metastasis (P=0.009).

Conclusion

An evaluation of the p27 expression for the papillary thyroid cancer cells obtained by FNA may be useful as a predictor for lymph node metastasis before surgery.

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