Intrahepatic bile duct adenoma in a patient with chronic hepatitis B accompanied by elevation of alpha-fetoprotein

A 51-year-old male patient with chronic hepatitis B was referred to our hospital due to a 1-cm liver nodule on ultrasonography. Alpha-fetoprotein (AFP) was slightly elevated. The nodule showed prolonged enhancement on dynamic liver magnetic resonance imaging and appeared as a hyperintensity on both...

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Main Authors: Jem Ma Ahn, Yong-Han Paik, Jun Hee Lee, Ju Yeon Cho, Won Sohn, Geum-Youn Gwak, Moon Seok Choi, Joon Hyeok Lee, Kwang Cheol Koh, Seung Woon Paik, Byung Chul Yoo
Format: Article
Language:English
Published: Korean Association for the Study of the Liver 2015-12-01
Series:Clinical and Molecular Hepatology
Subjects:
Online Access:http://e-cmh.org/upload/pdf/cmh-21-393.pdf
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author Jem Ma Ahn
Yong-Han Paik
Jun Hee Lee
Ju Yeon Cho
Won Sohn
Geum-Youn Gwak
Moon Seok Choi
Joon Hyeok Lee
Kwang Cheol Koh
Seung Woon Paik
Byung Chul Yoo
author_facet Jem Ma Ahn
Yong-Han Paik
Jun Hee Lee
Ju Yeon Cho
Won Sohn
Geum-Youn Gwak
Moon Seok Choi
Joon Hyeok Lee
Kwang Cheol Koh
Seung Woon Paik
Byung Chul Yoo
author_sort Jem Ma Ahn
collection DOAJ
description A 51-year-old male patient with chronic hepatitis B was referred to our hospital due to a 1-cm liver nodule on ultrasonography. Alpha-fetoprotein (AFP) was slightly elevated. The nodule showed prolonged enhancement on dynamic liver magnetic resonance imaging and appeared as a hyperintensity on both diffusion-weighted and T2-weighted imaging. The nodule was followed up because it was small and typical findings of hepatocellular carcinoma (HCC) were not observed in the dynamic imaging investigations. However, liver contrast-enhanced ultrasonography performed 1 month later showed enhancement during the arterial phase and definite washout during the delayed phase. Also, AFP had increased to over 200 ng/mL even though AST and ALT were decreased after administering an antiviral agent. He was presumptively diagnosed as HCC and underwent liver segmentectomy. Microscopy findings of the specimen indicated bile duct adenoma. After resection, the follow-up AFP had decreased to within the normal range. This patient represents a case of bile duct adenoma with AFP elevation mimicking HCC on contrast-enhanced ultrasonography.
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spelling doaj.art-4d9f43d7096c4cb0ac7070ae3fb158df2022-12-22T00:32:04ZengKorean Association for the Study of the LiverClinical and Molecular Hepatology2287-27282287-285X2015-12-0121439339710.3350/cmh.2015.21.4.3931168Intrahepatic bile duct adenoma in a patient with chronic hepatitis B accompanied by elevation of alpha-fetoproteinJem Ma Ahn0Yong-Han Paik1Jun Hee Lee2Ju Yeon Cho3Won Sohn4Geum-Youn Gwak5Moon Seok Choi6Joon Hyeok Lee7Kwang Cheol Koh8Seung Woon Paik9Byung Chul Yoo10Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.A 51-year-old male patient with chronic hepatitis B was referred to our hospital due to a 1-cm liver nodule on ultrasonography. Alpha-fetoprotein (AFP) was slightly elevated. The nodule showed prolonged enhancement on dynamic liver magnetic resonance imaging and appeared as a hyperintensity on both diffusion-weighted and T2-weighted imaging. The nodule was followed up because it was small and typical findings of hepatocellular carcinoma (HCC) were not observed in the dynamic imaging investigations. However, liver contrast-enhanced ultrasonography performed 1 month later showed enhancement during the arterial phase and definite washout during the delayed phase. Also, AFP had increased to over 200 ng/mL even though AST and ALT were decreased after administering an antiviral agent. He was presumptively diagnosed as HCC and underwent liver segmentectomy. Microscopy findings of the specimen indicated bile duct adenoma. After resection, the follow-up AFP had decreased to within the normal range. This patient represents a case of bile duct adenoma with AFP elevation mimicking HCC on contrast-enhanced ultrasonography.http://e-cmh.org/upload/pdf/cmh-21-393.pdfAdenomaBile ductHepatitis BAlpha-fetoproteinsUltrasonography
spellingShingle Jem Ma Ahn
Yong-Han Paik
Jun Hee Lee
Ju Yeon Cho
Won Sohn
Geum-Youn Gwak
Moon Seok Choi
Joon Hyeok Lee
Kwang Cheol Koh
Seung Woon Paik
Byung Chul Yoo
Intrahepatic bile duct adenoma in a patient with chronic hepatitis B accompanied by elevation of alpha-fetoprotein
Clinical and Molecular Hepatology
Adenoma
Bile duct
Hepatitis B
Alpha-fetoproteins
Ultrasonography
title Intrahepatic bile duct adenoma in a patient with chronic hepatitis B accompanied by elevation of alpha-fetoprotein
title_full Intrahepatic bile duct adenoma in a patient with chronic hepatitis B accompanied by elevation of alpha-fetoprotein
title_fullStr Intrahepatic bile duct adenoma in a patient with chronic hepatitis B accompanied by elevation of alpha-fetoprotein
title_full_unstemmed Intrahepatic bile duct adenoma in a patient with chronic hepatitis B accompanied by elevation of alpha-fetoprotein
title_short Intrahepatic bile duct adenoma in a patient with chronic hepatitis B accompanied by elevation of alpha-fetoprotein
title_sort intrahepatic bile duct adenoma in a patient with chronic hepatitis b accompanied by elevation of alpha fetoprotein
topic Adenoma
Bile duct
Hepatitis B
Alpha-fetoproteins
Ultrasonography
url http://e-cmh.org/upload/pdf/cmh-21-393.pdf
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