The Initial Risk Stratification System for Differentiated Thyroid Cancer: Key Updates in the 2024 Korean Thyroid Association Guideline.

ABSTRACT: In 2024, the Korean Thyroid Association (KTA) introduced a revised Risk Stratification System (K-RSS) for differentiated thyroid cancer, building upon the modified RSS (M-RSS) proposed by the American Thyroid Association in 2015. The K-RSS emphasizes the cumulative impact of coexisting clinical and pathological features, acknowledging that multiple intermediate-risk factors collectively indicate a higher recurrence risk. Histologic classification follows the 2022 World Health Organization classification, consolidating encapsulated follicular-patterned thyroid carcinomas, including invasive encapsulated follicular variant papillary thyroid carcinoma, follicular thyroid carcinoma, and oncocytic carcinoma of the thyroid gland, and stratifying them by the extent of capsular and vascular invasi

SUBMITTER: Moon S 

PROVIDER: S-EPMC12230267 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature