Korean J Gastroenterol.  2018 Oct;72(4):222-225. 10.4166/kjg.2018.72.4.222.

Primary Neuroendocrine Tumor of the Extrahepatic Bile Duct

• Son JH
• Lee YS
• Shin YC
• Kim HS

• KMID: 2424116
• DOI: http://doi.org/10.4166/kjg.2018.72.4.222

Abstract

No abstract available.

MeSH Terms

Bile Ducts, Extrahepatic*
Neuroendocrine Tumors*

Figure

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  Fig. 1 (A, B) Contrast-enhanced CT image shows a 3.6×4.3 cm sized enhancing mass (arrows) in porta hepatis. CT, computed tomography.

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  Fig. 2 Magnetic resonance cholangiopancreatography shows low signal intensity mass involving the common hepatic duct (white arrow).

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  Fig. 3 Endoscopic retrograde cholangiogram reveals biliary stricture of the common hepatic duct.

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  Fig. 4 Gross finding of the resected tumor shows a 4.7×4.5×3.5 cm sized protruding mass into the bile duct.

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  Fig. 5 Histopathologic findings. (A) Tumor cells shows trabecular arrangement. Cytoplasms are plump and deeply eosinophilic. Nuceli have round, smooth outline and dark chromatin (H&E, ×200). (B) Tumor cell cytoplasms are strongly stained with synaptophysin immunohistochemistry, which indicates neuroendocrine differentiation (synaptophysin, ×200).

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