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Fig. 4 | Surgical Case Reports

Fig. 4

From: Occupational cholangiocarcinoma diagnosed 18 years after the end of exposure to 1,2-dichloropropane and dichloromethane at a printing company: a case report

Fig. 4

Mapping chart of atypical bile duct epithelium. a Chronic bile duct injury as sclerosing cholangitis revealed in the proximal side of segment 8 (B8). b, c The enlarged lymph node in the hepatoduodenal ligament was diagnosed as a poorly differentiated adenocarcinoma with partial differentiation of the squamous epithelium. d Biliary intraepithelial neoplasia (BilIN) at the proximal side of segment 3 (B3). e, f Well-differentiated tubular adenocarcinoma at the stromal side of Glisson’s sheath around the proximal side of B3. g BilIN at the peripheral side of B3. h, i Intraductal tumor with cystic dilatation of the proximal side of the bile duct in segment 2 (B2) was intermediate-grade intraductal papillary neoplasm of the bile duct without any invasion

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