Type 2 autoimmune pancreatitis associated with severe ulcerative colitis: Three case reports

Figure 1 Fludeoxy glucose-positron emission tomography/computed tomography on diagnosis. A: The image shows diffusely increased tracer activity within the pancreas suggestive of an inflammatory process rather than malignancy; B: Eight weeks of tapered prednisone.

Figure 2 Computed tomography abdomen of case 2. A: Mild thickening and oedema of the head and body of the pancreas with subtle effacement of the peri-pancreatic fat planes coronal section is demonstrated; B: Axial section.

Figure 3 Histopathology of case 3. A: Acinar cells with intraepithelial lymphocytes present, consistent with lymphocytic acinar inflammation; B: Neutrophils in the close vicinity of the acinar cell groups, suggestive of granulocytic acinar infiltrate.

Figure 4 Suggested diagnostic algorithm for autoimmune pancreatitis in inflammatory bowel diseases. IBD: Inflammatory bowel diseases; AIP: Autoimmune pancreatitis; CT: Computed tomography; MRI: Magnetic resonance imaging; FDG-PET: Fludeoxy glucose-positron emission tomography; CE-EUS: Contrast enhanced endoscopic ultrasound.