12 July 2022: Image Quiz #86

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



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