Bile duct hamartomas (von Mayenburg complexes) mimicking liver metastases from bile duct cancer: MRC findings

Figure 1 Contrast-enhanced computed tomography showing multiple, very small and hypodense nodules with ring-like enhancement (0. 5 cm in diameter) in both hepatic lobes.

Figure 2 MR cholangiography (TR 16 000 ms TE 107. 8 ms) showing multiple irregularly delineated hyperintense nodules, not communicating with the biliary tree.

Figure 3 Intraoperative macroscopic view showing gray-white nodular lesions (about 0. 5 cm in diameter) scattered on the surface of the both liver lobes.

Figure 4 Microscopic view of liver biopsy showing multiple bile ducts with slightly dilated lumens embedded in the collagenous stroma (Hematoxylin and eosin, x100).