Retrospective Study
Copyright ©The Author(s) 2021.
World J Gastroenterol. Jul 21, 2021; 27(27): 4429-4440
Published online Jul 21, 2021. doi: 10.3748/wjg.v27.i27.4429
Table 4 Comparison of radiological findings between patients with multifocal autoimmune pancreatitis and pancreatic ductal adenocarcinoma, n (%)

Multifocal AIP
PDA
P value
No. of radiological findings of the pancreas56112
Multifocal lesion56 (100)2 (1.7)< 0.01
Capsule-like rim12 (21.4)4 (3.6)< 0.01
Delayed homogeneous enhancement on MDCT52 (92.8)15 (13.4)< 0.01
Margin (indistinct)48 (85.7)89 (79.5)0.325
Peripancreatic fat infiltration26 (46.4)102 (91.0)< 0.01
Vascular invasion8 (14.3)80 (71.4)< 0.01
Multiple MPD strictures53 (47.3)2 (1.8)< 0.01
Marked upstream MPD dilatation2 (3.6)59 (52.7)< 0.01
Upstream pancreatic atrophy 11 (19.6)66 (58.9)< 0.01
Lymphadenopathy2 (3.6)69 (61.6)< 0.01
ADC values (× 10-3 mm2/s)0.96 ± 0.161.15 ± 0.14 < 0.01