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. 2016 Nov 14;11(3):306–313. doi: 10.1007/s12105-016-0768-8

Fig. 1.

Fig. 1

a H&E section showing pagetoid infiltration of tonsillar crypt epithelium by tumor cells (arrows). b Cytokeratin 7 and c GCDFP-15 immunostains are strongly positive, showing the tumor cells infiltrating the epithelium and extending into the underlying lymphoid tissue. (a 10× magnification; b, c 20× magnification)