Childhood thyroid cancer (carcinoma of thethyroid) increasing trend, Beijing Children's Hospital with pathologically confirmed 1,379 cases of malignant tumors in the thyroid carcinoma in 10 patients (0.7%), while in patients with thyroid cancer foreign reports, 15-year-old Following about 3.7% to 5%, the largest found in 10 to 14 years. Girls more, the male to female ratio was 1:2 ~ 3.
Children's thyroid is very sensitive to radiation, past children with thyroid cancer in infants had benign lesions such as the thymus hypertrophy, such as hemangioma near the neck and radiotherapy were accounted for 80%, as these benign lesions do not radiotherapy, radiotherapy carcinogenic factors have also disappeared. 15 ~ 50% for children with Hodgkin's disease, leukemia and other malignant diseases of head and neck radiotherapy and chemotherapy, which occurred in the first year of thyroid stimulating hormone (TSH) increase, then 5 to 7 years 5% to 20% for the development of thyroid function lower. Generally after radiotherapy 3 to 5 years of thyroid cancer by 15 to 25-year-old for the summit.
Can be divided into papillary thyroid carcinoma (papillary), follicular (follicular), or mixed tumor differentiation. These often slow-growing tumor, was static for many years, and receiving or have received radiotherapy course is the same, but the patients received radiotherapy see more multi-center of the tumor. About 4% of patients papilloma home in the same patients. Children very rarely undifferentiated carcinoma,developing rapidly, leading to death.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment