Imaging features of bile duct adenoma: Case series and review of literature

Jeffrey A. Chuy, Ishan Garg, Rondell Graham, Wendaline M. Vanburen, Sudhakar K Venkatesh

Research output: Contribution to journalArticle

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Abstract

PURPOSE We aimed to evaluate the imaging features of bile duct adenoma (BDA) on ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI). METHODS Retrospective search in our institution database was performed for histologically confirmed BDA. Their imaging studies before histologic confirmation were reviewed. The search identified seven adults (mean age, 52.9 years) with histologically proven single BDA each. US (n=3), CT (n=5), and MRI (n=3) were performed before histologic confirmation. Additionally, a systematic English literature review for BDA and reported imaging findings since 2000 was also conducted using the following search criteria “bile duct adenoma, peribiliary hamartoma, biliary adenoma, CT, ultrasound, MRI” (date range: 01/01/2000 through 08/31/2016). The imaging findings of those cases reported were summarized and compared with our series. RESULTS All seven individual nodules were well circumscribed. Five lesions were located in the right hepatic lobe and two in the left hepatic lobe. On US, lesions appeared hypoechoic (n=2) and hyperechoic (n=1). BDA was hypodense on unenhanced CT images (n=1). On MRI, BDA were hypointense on T1 (n=3), hyperintense on T2 (n=3), and hyperintense on diffusion-weighted images (n=2). On contrast-enhanced CT and MRI, BDAs showed arterial phase hyperenhancement that persisted on portal venous/delayed phase images. CONCLUSION BDA demonstrates characteristic arterial phase hyperenhancement that persisted into the portal venous and delayed phases on CT and MRI, which may be useful in differentiating from other hepatic lesions.

Original languageEnglish (US)
Pages (from-to)249-254
Number of pages6
JournalDiagnostic and Interventional Radiology
Volume24
Issue number5
DOIs
StatePublished - Sep 1 2018

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Bile Duct Adenoma
Tomography
Magnetic Resonance Imaging
Ultrasonography
Liver
Hamartoma
Adenoma
Databases

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

Cite this

Imaging features of bile duct adenoma : Case series and review of literature. / Chuy, Jeffrey A.; Garg, Ishan; Graham, Rondell; Vanburen, Wendaline M.; Venkatesh, Sudhakar K.

In: Diagnostic and Interventional Radiology, Vol. 24, No. 5, 01.09.2018, p. 249-254.

Research output: Contribution to journalArticle

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abstract = "PURPOSE We aimed to evaluate the imaging features of bile duct adenoma (BDA) on ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI). METHODS Retrospective search in our institution database was performed for histologically confirmed BDA. Their imaging studies before histologic confirmation were reviewed. The search identified seven adults (mean age, 52.9 years) with histologically proven single BDA each. US (n=3), CT (n=5), and MRI (n=3) were performed before histologic confirmation. Additionally, a systematic English literature review for BDA and reported imaging findings since 2000 was also conducted using the following search criteria “bile duct adenoma, peribiliary hamartoma, biliary adenoma, CT, ultrasound, MRI” (date range: 01/01/2000 through 08/31/2016). The imaging findings of those cases reported were summarized and compared with our series. RESULTS All seven individual nodules were well circumscribed. Five lesions were located in the right hepatic lobe and two in the left hepatic lobe. On US, lesions appeared hypoechoic (n=2) and hyperechoic (n=1). BDA was hypodense on unenhanced CT images (n=1). On MRI, BDA were hypointense on T1 (n=3), hyperintense on T2 (n=3), and hyperintense on diffusion-weighted images (n=2). On contrast-enhanced CT and MRI, BDAs showed arterial phase hyperenhancement that persisted on portal venous/delayed phase images. CONCLUSION BDA demonstrates characteristic arterial phase hyperenhancement that persisted into the portal venous and delayed phases on CT and MRI, which may be useful in differentiating from other hepatic lesions.",
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