PMC4342858_01
Magnetic resonance cholangiopancreatography revealed a multilocular cystic lesion in the body of the pancreas (arrow) and continuity with the main pancreatic duct that was slightly dilated more distally was suspected (arrowhead).
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F1
Magnetic resonance cholangiopancreatography revealed a multilocular cystic lesion in the body of the pancreas, and continuity with the main pancreatic duct that was slightly dilated more distally was suspected (fig. 1).
ERP revealed irregular stricture of the main pancreatic duct in the area between the pancreatic head and body (arrow). The distal portion of the pancreatic duct was dilated (arrowhead).
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F2
The distal portion of the pancreatic duct was dilated (fig. 2).
Histopathological findings. Diffuse lesions corresponding to PanIN-2 to PanIN-3 (carcinoma in situ) were noted primarily in the main pancreatic duct (a). Multiple intraepithelial papillary lesions were noted in a multilocular cystic lesion (b). The irregular stricture of the pancreatic duct in the head of the pancreas was severely fibrotic, and papillary growth of intraepithelial lesions (corresponding to PanIN-2 and carcinoma in situ) was noted (c).
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F3
Histopathological findings were as follows: diffuse lesions corresponding to PanIN-2 to PanIN-3 [carcinoma in situ (CIS)] were noted primarily in the main pancreatic duct (fig. 3a). Multiple intraepithelial papillary lesions were noted in a multilocular cystic lesion and the dilated main pancreatic duct (fig. 3b). The irregular stricture of the pancreatic duct in the head of the pancreas was severely fibrotic, and papillary growth of intraepithelial lesions (corresponding to PanIN-2 and CIS) was noted (fig. 3c).