Although there was no statistically significant difference in MGMT and MSH2 staining intensity, as seen in Table 3, there was no difference between papillary carcinoma cases and chronic thyroiditis cases in terms of intense staining, but the difference between papillary carcinoma and colloidal goiter was more pronounced in favor of papillary carcinoma. The gene discussed is MGMT; the disease is thyroid gland papillary carcinoma.