Conversely, among the CK7 positive cases, CK7 reactivity was diffuse in the majority of gastric and pancreatic adenocarcinomas in 74% (35/47) and 94% (29/31) of cases respectively, and this reactivity was focal in 54% (14/26) of colorectal carcinomas (χ2 = 16.228;p < 0.001) (Figure 2). The gene discussed is KRT7; the disease is pancreatic adenocarcinoma.