Implementing the Who Classification of Endocrine Neoplasms, 2022 on Thyroid Lesions in a Retrospective Fashion

Being the most common neoplasms of endocrine system, thyroid neoplasms which were previously diagnosed based on WHO 4th edition of endocrine neoplasms were reviewed over a period of one year and reclassied based on current new WHO 5th edition of endocrine neoplasms. Many new categories have been introduced in 5th edition of WHO classication for thyroid neoplasms. Total 46 cases of thyroid lesions were reviewed retrospectively over a period of January 2022 to January 2023 by three pathologists. Previously it was thought to diagnose and classify thyroid tumors are based purely on morphologic features are now enriched by thorough understanding of management-centric histologic features. In new classication molecular aspects of thyroid tumors are also included which will thought to be helpful in précised diagnosis which will further helpful in the management.