Cytopathology in Focus: For thyroid cytopathology, the 2017 Bethesda System
May 2018—Surgical pathologists take their tumor nomenclature from the WHO Classification of Tumours, but cytopathologists take their terminology from where the consensus groups convened—Bethesda, Paris, Milan, and Yokohama—to formulate terminology recommendations. The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC)1 is now in its second edition.