• 1.Department of General Surgery, 153 Hospital of PLA, Zhengzhou 450007, China;;
  • 2. Department of General Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai 200003, China;
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Objective To investigate the expression of c-met in tall cell variant of papillary thyroid carcinoma, and to compare it with other types of thyroid carcinoma and benign thyroid tissue. Methods The expressions of c-met in 60 cases of thyroid specimens were tested by immunohistochemical staining. Results The levels of expressed c-met in tall cell variant specimens were significantly higher than those in other types of papillary thyroid carcinoma and benign thyroid tissue. c-met expressions were significantly different in the following pairs of types: tall cell variant vs common papillary carcinoma of thyroid (P=0.000 1), tall cell variant vs follicular variant papillary thyroid carcinoma (P=0.000 1), and tall cell variant vs benign thyroid tissue (P=0.000 1). In addition, for all types of papillary carcinomas evaluated, c-met expression was significantly higher in specimens with extracapsular spread (P=0.010 0) and skeletal muscle invasion (P=0.020 0). Conclusion The high expression of c-met is a significant marker for tall cell variant papillary carcinoma of thyroid and its invasive behavior. This finding may explain the unusually aggressive behavior of this tumor and suggest a role for c-met in the early identification of patients with tall cell variant thyroid carcinoma.

Citation: ZHANG Chunxu,WANG Qiang,LI Yanfu. c-met Expression in Tall Cell Variant Papillary Carcinoma of The Thyroid. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2008, 15(5): 318-322. doi: Copy