Fig. 2From: Cancer of unknown primary with EGFR mutation successfully treated with targeted therapy directed by clinical next-generation sequencing: a case reportPathologic findings. a H&E Staining of the surgical specimens of total thyroidectomy. b On the immunohistochemical examinations the cells were stained positive for thyroid transcription factor 1 (TTF-1), Cyclin D1 and PAX8 and negative for Napsin A, p53 and ALKBack to article page