PMC5479948_01
a) Hematoxylin and eosin -staining 200x, b) Cytokeratin 5/6 immunohistopathology, c) p63 immunohistopathology, d) thyroglobulin immunohistopathology.
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Histopathology and immunohistochemistry showing positivity for p63, CK5 is displayed in Fig. 1a-c while staining for thyroglobulin was restricted to the non-neoplastic thyroid tissue (Fig. 1d).