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Fig. 1 | BMC Surgery

Fig. 1

From: Laparoscopic ultrasound-guided superselective portal vein injection combined with real-time indocyanine green fluorescence imaging and navigation for accurate resection of localized intrahepatic bile duct dilatation: a case report

Fig. 1

a Preoperative computed tomography imaging revealed localized intrahepatic bile duct dilatation in the superior region of hepatic S4 (white arrow); b Magnetic resonance cholangiopancreatography showed localized intrahepatic bile duct dilatation in the region of hepatic S4 (white arrow); c Ultrasound examination showed localized intrahepatic bile duct dilatation with cholangiolithiasis in the region of hepatic S4 (specific tag); d Computed tomographic angiography indicated the portal vein branch of the target hepatic segment (red arrow)

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