Abstract: Objective: To study the clinical characteristics, treatment, and prognosis of thyroid cancer in children and adolescents. Methods: We performed a retrospective analysis of clinical data from 83 cases of thyroid cancer in children and adolescents from January 1990 to December 2010. We compared extra-thyroid extension, lymph node metastasis, distant metastasis, and prognosis between pediatric patients ≤12 years of age (27 cases) and those >12 years of age (56 cases). All the patients agreed to undergo thyroidectomy and endocrine therapy, and the consent was obtained from parents or guardians. Results: Histopathology included papillary carcinoma in 67 cases, papillary carcinoma with partial follicular growth pattern in 1 case, papillary carcinoma with squamous metaplasia in 4 cases, follicular carcinoma in 7 cases, medullary carcinoma in 3 cases, and poorly differentiated carcinoma in 1 case. The total lymph node metastasis rate was 78.31%. Patients ≤12 years of age showed a higher rate of lymph node metastasis than the older group (92.59% vs. 71.43%, P=0.028). The incidence rate in females in the older group was higher than that in the younger group (80.36% vs. 59.26%, P=0.041). There were no significant differences in extra-thyroid extension, distant metastasis, survival rate, or recurrent disease between the two groups. Conclusions: The lymph node metastasis of thyroid cancer is higher in patients ≤12 years of age than in those >12 years of age; the incidence rate is higher in females than in males. Childhood thyroid cancer has a good prognosis, surgery being the most effective treatment. Choosing a reasonable surgery method and comprehensive postoperative treatment can achieve a cure and satisfactory survival rate.

Key words: Children and adolescents; Thyroid cancer; Clinical characteristics; Surgical treatment

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