Figure 1

Increased nuclear expression of HNF4α isoforms in non-invasive HG IPMNs. (a) Average nuclear staining intensity of non-invasive IPMN ROIs as graded by 2 pathologists for pan-promoter, P1, and P2 HNF4α isoforms. The scale bar represents 100 µm. (b) Average nuclear intensity according to IPMN grade. Pan-promoter LG IPMN versus HG IPMN: p < 0.0001; P1 LG IPMN versus HG IPMN p < 0.0001; P2 LG IPMN versus HG IPMN: p = 0.0211.