Authors: Simona De Michele, M.D., Helen E. Remotti, M.D.
When evaluating the pulmonary neoplasm shown in the image, which immunohistochemical stain is more specific than CDX2 for ruling in a colorectal metastasis?
Select an answer:
A. CK7
B. CK20
C. Napsin A
D. SATB2
E. TTF1
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