PMC6311296_01
Ultrasound transverse sections. (a) Cystic mass with a gallstone independent of the gallbladder. (b) Intracystic tissue bud. (c) Dilatation of the intrahepatic bile ducts.
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In addition, there was intrahepatic bile duct dilation, particularly noticeable on the left (Figure 1).
CT sections after injection of iodized product at portal venous phase. (a) Axial section: cystic mass with secondary lesion of the VI segment. (b) Oblique reconstruction showing mass relationship with the bile ducts.
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The oblique reconstruction showed the relationship of this cystic mass with the biliary tree (Figure 2).
Biliary MRI. (a) Front MIP reconstruction of the bile ducts and cystic mass. (b) The diffusion sequence showed high signal intensity of intracystic bud and the apparent diffusion coefficient (ADC) map shows low signal intensity of lesions characteristic of tumor lesion.
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The diffusion sequence performed during this examination confirmed the malignancy of the liver's segment VI nodules and the intracystic tissue bud (Figure 3).
Histopathology. (a) Endocytic adenocarcinoma x10. (b) Adenocarcinoma bud x10. (c) Adenocarcinoma bud x40. (d) Degeneration of the liver x10.
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Histopathological examination of the intracystic tissue bud and of the liver's nodules of segment VI showed an appearance of intraductal and infiltrating adenocarcinoma (Figure 4).