Hepatocellular adenoma ultrasound: Difference between revisions

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{{Hepatocellular adenoma}}
{{Hepatocellular adenoma}}


{{CMG}}; {{AE}} {{NM}}
{{CMG}}; {{AE}} {{ZAS}}


==Overview==
==Overview==
The [[Ultrasound|ultrasonographic]] features of [[hepatocellular adenoma]] are non specific and may appear as hyper, iso or hypo echoic. It can show a hyper echoic [[mass]]. The color doppler [[ultrasound]] shows [[Tumoral|intratumoral]] [[Vein|veins]] associated with peritumoral [[Vein|veins]] and [[Artery|arteries]]. The [[contrast]] enhanced [[ultrasound]] is hypervascular in [[Artery|arterial]] phase and shows centripetal filling in [[Portal vein|portal venous]] and delayed phases.
==Ultrasound==
==Ultrasound==
On ultrasound hepatocellular adenoma is characterized by:
* The [[Ultrasound|ultrasonographic]] features of [[hepatocellular adenoma]] are non specific and may appear as hyper-, iso-, or hypo echoic.<ref name="Radiopaedia">{{cite web | title = Radiopedia 2015 Hepatic adenoma [Dr Matt A. Morgan and Dr Koshy Jacob]| url = http://radiopaedia.org/articles/hepatic-adenoma }}</ref>
* The classic appearance of [[hepatocellular adenoma]] is a well demarcated hyper echoic [[mass]], whereas, central [[necrosis]] and [[hemorrhage]] gives rise to [[heterogeneous]] echogenecity that can resemble [[focal nodular hyperplasia]].<ref>{{Cite journal
| author = [[Ludger Barthelmes]] & [[Iain S. Tait]]
| title = Liver cell adenoma and liver cell adenomatosis
| journal = [[HPB : the official journal of the International Hepato Pancreato Biliary Association]]
| volume = 7
| issue = 3
| pages = 186–196
| year = 2005
| month =
| doi = 10.1080/13651820510028954
| pmid = 18333188
}}</ref>
* The color doppler [[ultrasound]] features of [[hepatocellular adenoma]] include; intratumoral [[Vein|veins]] associated with peritumoral [[Vein|veins]] and [[Artery|arteries]].<ref>{{Cite journal
| author = [[M. Golli]], [[J. T. Van Nhieu]], [[D. Mathieu]], [[E. S. Zafrani]], [[D. Cherqui]], [[D. Dhumeaux]], [[N. Vasile]] & [[A. Rahmouni]]
| title = Hepatocellular adenoma: color Doppler US and pathologic correlations
| journal = [[Radiology]]
| volume = 190
| issue = 3
| pages = 741–744
| year = 1994
| month = March
| doi = 10.1148/radiology.190.3.8115621
| pmid = 8115621
}}</ref>
* The [[contrast]] enhanced [[ultrasound]] of [[hepatocellular adenoma]] is hypervascular in [[Artery|arterial]] phase and shows centripetal filling in portal [[Vein|venous]] and delayed phases.


*A solitary well-demarcated heterogeneous mass,
:* It has been reported that 20%–40% of hepatocellular adenomas are hypoechoic and up to 30% are hyperechoic.
*A hypoechoic halo of focal fat sparing is also frequently seen.
:* Colour Doppler: may show perilesional sinusoids
:* Contrast-enhanced ultrasound
::*arterial phase
:::*hypervascular (similar to FNH, although adenomas are usually less enhancing)
::*portal venous and delayed phases
:::*centripetal filling in (opposite of FNH which shows centrifugal filling)
==References==
==References==
{{reflist|2}}
{{reflist|2}}
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Latest revision as of 16:11, 15 January 2019

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Zahir Ali Shaikh, MD[2]

Overview

The ultrasonographic features of hepatocellular adenoma are non specific and may appear as hyper, iso or hypo echoic. It can show a hyper echoic mass. The color doppler ultrasound shows intratumoral veins associated with peritumoral veins and arteries. The contrast enhanced ultrasound is hypervascular in arterial phase and shows centripetal filling in portal venous and delayed phases.

Ultrasound

References

  1. "Radiopedia 2015 Hepatic adenoma [Dr Matt A. Morgan and Dr Koshy Jacob]".
  2. Ludger Barthelmes & Iain S. Tait (2005). "Liver cell adenoma and liver cell adenomatosis". HPB : the official journal of the International Hepato Pancreato Biliary Association. 7 (3): 186–196. doi:10.1080/13651820510028954. PMID 18333188.
  3. M. Golli, J. T. Van Nhieu, D. Mathieu, E. S. Zafrani, D. Cherqui, D. Dhumeaux, N. Vasile & A. Rahmouni (1994). "Hepatocellular adenoma: color Doppler US and pathologic correlations". Radiology. 190 (3): 741–744. doi:10.1148/radiology.190.3.8115621. PMID 8115621. Unknown parameter |month= ignored (help)


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