Compressive goiter hiding clear cell renal cell carcinoma metastases to the thyroid gland – report of a rare case and literature review.Authors: Chuyao Ying1; Henrique Messias, MD MSc2,3*; Carlos Zagalo, MD PhD2; Saudade André, MD PhD4; Pedro Gomes, MD2Affiliations:1 University of Lisbon, Faculty of Medicine, Portugal.2 Head and Neck Surgery department, Portuguese Institute of Oncology Francisco Gentil, Lisbon, Portugal.3 Division of Health Sciences, University of Edinburgh, United Kingdom.4 Pathological Anatomy department, Portuguese Institute of Oncology Francisco Gentil, Lisbon, Portugal.* Corresponding author:Henrique Messias, MD MScHead and Neck Surgery department, Portuguese Institute of Oncology of Lisbon Francisco Gentil,Rua Professor Lima Basto, 1099-023 Lisboa, Portugal Tel: +351913858593, E-mail: v1hmessi@ed.ac.uk