Relato de caso
Anaplastic Cancer and Papillary Thyroid Cancer in the same Patient: Is it a Co-Incidence or a Process of Transformation? A Case Report
Gulfem Kaya, Sefika Burcak Polat, Ersin Gurkan Dumlu, Hayriye Tatli, Reyhan Unlu Ersoy and Bekir Cakir