Figure 1.

CK20 staining in colorectal, gastric, and pancreatic adenocarcinomas. (A) Colorectal adenocarcinoma displayed diffuse and strong immunoreactivity in the cytoplasm of cancer cells. (B) Gastric and (C) pancreatic adenocarcinomas exhibited focal cytoplasmic staining for CK20. Original magnification × 100.

Bayrak et al. Diagnostic Pathology 2012 7:9   doi:10.1186/1746-1596-7-9
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