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. Author manuscript; available in PMC: 2022 Mar 1.
Published in final edited form as: Histopathology. 2020 Nov 9;78(4):508–519. doi: 10.1111/his.14246

Figure 2. Metastatic pulmonary adenocarcinoma (P) to the thyroid gland (T),

Figure 2.

hematoxylin and eosin (H&E, A) and immunohistochemistry for thyroglobulin (TG, B), napsin-A (C), TTF-1 (D), and PAX8 (E, Case #12). The metastatic pulmonary adenocarcinoma is positive for napsin-A and TTF-1, whereas negative for TG and PAX8. The background thyroid gland is positive for PAX8, TTF-1, and TG, and is negative for napsin-A.