%0 Journal Article %T Abdominal Ectopic Thyroid Tissue: The Man From Istanbul %A Chiara Trambaiolo Antonelli %A Federica Grillo %A Luca Mastracci %A Luca Valle %A Michela Campora %A Roberto Fiocca %J International Journal of Surgical Pathology %@ 1940-2465 %D 2019 %R 10.1177/1066896919833784 %X Thyroid ectopia is a rare finding below the diaphragm. It is characterized by normal thyroid parenchyma in unusual locations with preserved thyroid marker immunoreactivity. In this article, we present the first known case of thyroid tissue in the periappendiceal fat and discuss possible ethiopathogenic theories %K ectopic thyroid %K abdomen %K appendix %K immunohistochemistry %K pitfall in pathology %U https://journals.sagepub.com/doi/full/10.1177/1066896919833784