Autoimmune pancreatitis associated with a large pancreatic pseudocyst

Figure 1 MRCP (A) depicting the dilated bile duct (13 mm) in close vicinity to the pancreatic cyst; CT scans (B, C) showing the cystic pancreatic lesion in the pancreatic head (arrows).

Figure 2 Intraoperative findings of the resected pancreatic specimen. A, B: Macroscopic appearance of the pancreaticoduodenectomy specimen (A) and the opened pseudocyst (B). Arrows indicate the pancreatic cut margin. Scale bar: 1 cm.

Figure 3 Histological findings of the resected pancreatic specimen. Histological examination displaying marked chronic periductal lymphoplasmacytic inflammation and fibrosis (A-C), intrapancreatic lymph follicle (D), and venulitis (E). F depicts the wall of the pseudocyst without evidence of epithelial lining.