Four stages of thyroid cancer. Survival rate and treatment methods
The stage of the oncological disease is established according to the results of the examination. There are two classification systems of stages. The first one is clinical, according to it the stages of the disease are marked by numbers I, II, III, IV. The second is TNM Classification of Malignant Tumours. It is used for a more detailed characterization of the growth and spread of the tumor. In this article, we will look at both systems, the difference between them, and how the disease is treated...