Fig. 3From: Follicular adenoma with a papillary architecture originating from an ectopic thyroid gland: a case reportHistopathological examination of the tumor. A Papillary lesions with fibrovascular cores are observed in the interior (H&E staining, original magnification×40). B Epithelial cells are cylindrical in shape, with eosinophilic cytoplasm and round or oval nuclei (H&E*, original magnification×400). C Epithelial cells were positive for TTF-1(original magnification×40). D Epithelial cells are positive for thyroglobulin (original magnification×40). *Hematoxylin and EosinBack to article page