A/Prof Catherine Sinclair is a dual fellowship trained thyroid / head & neck surgeon and laryngologist. She is the leading expert in Australia for nonsurgical treatment of thyroid nodules and cysts using thermal and chemical ablation. She introduced the technique of thyroid radiofrequency ablation to Australia in 2021, and also performed the first thermal ablation in New York in 2019 and chaired the American Thyroid Association Statement on ablation techniques for benign thyroid nodules. She worked as the Director of Head and Neck Surgery at Mount Sinai West in New York for over a decade before relocating back to Melbourne four years ago. She has authored numerous peer reviewed papers and book chapters on multiple endocrine topics and is the current Editor-in-Chief of VideoEndocrinology.