Cancer types relevant to the head and neck and their associated markers used in the Intelli test include “head and neck” (p63, HMWCK, CK5/CK6), “thyroid” (TTF‐1, thyroglobulin, calcitonin, CK19), and “sarcoma” (SMA, S100, CSV).21 The gene discussed is TTF1; the disease is sarcoma.