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. 2023 Mar 3;27(1):37–44. doi: 10.4103/ijem.ijem_389_22

Figure 4.

Figure 4

The immunohistochemical characteristics in SCNs. (a) SCNs (Blue arrow) and PTC-like nuclear alterations (Red arrow) are located next to the lymph follicles in HT (H&E, Original magnification x 200). (b)P63 positivity in SCNs (Purple arrow) and negativity in PTC-like nuclear alterations (Red arrow) (Original magnification x 200). (c) CK19 positivity (3+) in SCNs (Purple arrow) and positivity (1+) in PTC-like nuclear alterations (Red arrow), (Immunoperoxidase, Original magnification x 200). (d) HBME-1 positivity (2+) in SCNs (Purple arrow) and negativity in PTC-like nuclear alterations (Red arrow), (Immunoperoxidase, Original magnification x 200). (e) TTF1 positivity in SCNs (Purple arrow) and PTC-like nuclear alterations (Red arrow), (Immunoperoxidase, Original magnification x 200). (f) Calcitonin positivity in SCNs (Purple arrow, Immunoperoxidase, Original magnification x 400)