Importance of early diagnosis of pancreaticobiliary maljunction without biliary dilatation

Figure 1 Endoscopic retrograde cholangiopancreatography of a patient with pancreaticobiliary maljunction without biliary dilatation showing a long common channel and deformity with fuzzy irregularity of the gallbladder.

Figure 2 Abdominal ultrasound of a patient with pancreaticobiliary maljunction without biliary dilatation showing uniform smooth thickness of the gallbladder wall.

Figure 3 Endoscopic ultrasonography of a patient with pancreaticobiliary maljunction without biliary dilatation showing thickening of the inner hypoechoic layer and the outer hyperechoic layer.

Figure 4 Histological findings of the gallbladder of a patient with pancreaticobiliary maljunction without biliary dilatation showing wall thickness composed of epithelial hyperplasia, hypertrophic muscular layer, and subserosal fibrosis.