Table 6.
Comparison of characteristics between focal autoimmune pancreatitis and pancreatic cancer in the derivation sample
| Clinical and EUS characteristics | FAIP (n=45), n (%) | PC (n=99), n (%) | P* |
|---|---|---|---|
| Age (years), median (range) | 59 (27–82) | 63 (36–88) | 0.0310 |
| Sex (male/female) | 38/7 | 55/44 | 0.0008 |
| Jaundice, n (%) | 35 (77.8) | 60 (60.6) | 0.0438 |
| Diffuse hypoechogenicity | 37 (82.2) | 2 (2.0) | <0.0001 |
| Focal hypoechogenicity | 8 (17.8) | 97 (98.0) | <0.0001 |
| Hyperechoic foci/strands | 41 (91.1) | 23 (23.2) | <0.0001 |
| Lobularity | 13 (28.9) | 1 (1.0) | <0.0001 |
| Peripancreatic hypoechoic margin | 17 (37.8) | 0 | <0.0001 |
| MPD dilation | 8 (17.8) | 78 (78.8) | <0.0001 |
| CBD dilation | 31 (68.9) | 68 (68.7) | 0.9807 |
| Bile duct wall thickening | 38 (84.4) | 19 (19.2) | <0.0001 |
| lymphadenopathy | 24 (53.3) | 43 (43.4) | 0.2697 |
| Vessel involvement | 11 (24.4) | 58 (58.6) | 0.0001 |
*t-test, Chi-square test or Fisher’s exact test. FAIP: Focal autoimmune pancreatitis; PC: Pancreatic cancer; MPD: Main pancreatic duct; CBD: Common bile duct