Table 1.
Type of tissue | Number of cases | Negative (%) | Focal staining (%) | Diffuse staining (%) | P valueb |
---|---|---|---|---|---|
Benign pancreatic tissue | 146 | ||||
Normal | 109 | 0 (0) | 0 (0) | 109 (100) | |
Chronic pancreatitis | 37 | 0 (0) | 0 (0) | 37 (100) | 1.00 |
Pancreatic intraepithelial neoplasia | |||||
Grade 1 | 18 | 0 (0) | 0 (0) | 18 (100) | 1.00 |
Grade 2 | 21 | 0 (0) | 6 (28.6) | 15 (71.4) | <0.01 |
Grade 3 | 8 | 0 (0) | 2 (25.0) | 6 (75.0) | 0.004 |
Intraductal Papillary Mucinous Neoplasm | 21 | ||||
Low Grade Dysplasia | 13a | 0 (0) | 3 (23.1) | 10 (76.9) | 0.001 |
High Grade Dysplasia | 11 | 0 (0) | 2 (18.2) | 11 (81.8) | 0.01 |
Mucinous cystic neoplasm | 14 | ||||
Low Grade Dysplasia | 14a | 0 (0) | 0 (0) | 14 (100) | 1.00 |
High Grade Dysplasia | 3 | 0 (0) | 0 (0) | 3 (100) | 1.00 |
Serous cystadenoma | 10 | 0 (0) | 0 (0) | 10 (100) | 1.00 |
Including three patients with both low-grade and high-grade dysplasia;
P values compared to normal pancreas