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case_images: Magnetic resonance image (a) and magnetic resonance cholangiopancreatography (b) showed an aberrant bile duct (arrows) in the gallbladder fossa. Gallbladder was indicated by arrow heads.
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case_images: In preoperative work-up, sign of invasion was not apparent, and a string-like structure with high intensity traversing in the peri-hepatic connective tissue of the gallbladder fossa was shown by MRCP suggesting an aberrant bile duct (Fig. 1).
case_images: Intraoperative fluorescence cholangiography demonstrated the aberrant bile duct (arrows).
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case_images: At the time of laparotomy (about one hour after injection of ICG), although the abnormal structure was not identified macroscopically, IFC demonstrated a lumen-like structure with the similar intensity as gallbladder and extrahepatic bile duct (Fig. 2), and the structure was deemed to contain bile juice.
case_images: Intraoperative identification (a) and ligation (b) of the aberrant bile duct (arrows) during dissection of gallbladder fossa.
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case_images: Using IFC as a guide, gallbladder fossa was dissected and the duct was identified, ligated and divided (Fig. 3).
case_images: Macroscopic examination of resected gallbladder revealed a papillary polypoid tumor (arrows).
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case_images: Macroscopically, a papillary polypoid tumor 11 mm in size was noted in the body of the resected gallbladder (Fig. 4).