[Background diseases in thyroid cancer]

The study of thyroid cancer background diseases in hospitals of Republic of Armenia was carried out. 529 cases of primary thyroid cancer were studied from 1999 to 2011. It was found that in women, concomitant thyroid pathology is more common than in men (p<0.05). The morphological verification of any nodules in the thyroid gland is necessary. Thyroid cancer can occur on the background of benign thyroid diseases, but this is no reason for regarding these as a precancerous conditions. According to the results of this study, the incidence of «hidden» carcinomas is the same, as revealed on the background of benign Thyroid diseases and without the benign nodes. One of the most important prognostic factors for long-term survival of patients with thyroid cancer is a timely diagnosis. Early detection of tumors and the exact differential diagnosis of benign nodes with carcinomas can eliminate the malignant process in the initial stages of its development. In our material there was no case of a combination of thyrotoxic Goiter with thyroid cancer.