Risk of malignancy in the various categories of the UK Royal College of Pathologists Thy terminology for thyroid FNA cytology: A systematic review and meta‐analysis

Background The UK Royal College of Pathologists Thy terminology for reporting thyroid fine‐needle aspiration cytology (FNAC), first published in 2009 is used throughout the United Kingdom and Ireland, in some parts of Italy and Switzerland and elsewhere. There is no review of the literature or meta‐analysis of the risk of malignancy (ROM) in the various categories of the UK Thy terminology. The goal of this study was to establish the published...