Amoebic liver abscess ultrasound: Difference between revisions
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==Overview== | ==Overview== | ||
Ultrasound is the gold standard technique for the diagnosis of amoebic liver abscess. The intrahepatic ultrasound findings include homogenous hypoechoic areas that can be single or multiple with round edges, round or oval in shape and variable size (around 2-6 cm in diameter), an incomplete rim of edema, location near liver capsule, margin of abscess tends to be nodular in around 40% of cases and smooth in 60% of cases, internal septations may be present in 30% of cases, and focal intrahepatic biliary dilatation peripheral to an abscess may be present. The extra hepatic findings include pleural effusion, perihepatic fluid collection, gastric or colonic involvement and retroperitoneal extension.<ref name=abscess>https://radiopaedia.org/articles/amoebic-hepatic-abscess Accessed on February 7, 2017 </ref><ref name="pmid9362096">{{cite journal| author=Kimura K, Stoopen M, Reeder MM, Moncada R| title=Amebiasis: modern diagnostic imaging with pathological and clinical correlation. | journal=Semin Roentgenol | year= 1997 | volume= 32 | issue= 4 | pages= 250-75 | pmid=9362096 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9362096 }} </ref> | [[Ultrasound]] is the [[Gold standard (test)|gold standard]] technique for the diagnosis of amoebic liver abscess. The intrahepatic ultrasound findings include homogenous hypoechoic areas that can be single or multiple with round edges, round or oval in shape and variable size (around 2-6 cm in diameter), an incomplete rim of [[edema]], location near liver capsule, margin of [[abscess]] tends to be nodular in around 40% of cases and smooth in 60% of cases, internal septations may be present in 30% of cases, and focal intrahepatic [[bile duct|biliary]] dilatation peripheral to an abscess may be present. The extra hepatic findings include [[pleural effusion]], perihepatic fluid collection, [[gastric]] or [[colon|colonic]] involvement and [[retroperitoneum|retroperitoneal]] extension.<ref name=abscess>https://radiopaedia.org/articles/amoebic-hepatic-abscess Accessed on February 7, 2017 </ref><ref name="pmid9362096">{{cite journal| author=Kimura K, Stoopen M, Reeder MM, Moncada R| title=Amebiasis: modern diagnostic imaging with pathological and clinical correlation. | journal=Semin Roentgenol | year= 1997 | volume= 32 | issue= 4 | pages= 250-75 | pmid=9362096 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9362096 }} </ref> | ||
==[[Ultrasonography]]== | |||
==Ultrasonography== | [[Ultrasound]] is the [[Gold standard (test)|gold standard]] technique for the diagnosis of amoebic liver abscess. The ultrasound findings include:<ref name=abscess>https://radiopaedia.org/articles/amoebic-hepatic-abscess Accessed on February 7, 2017 </ref><ref name="pmid9362096">{{cite journal| author=Kimura K, Stoopen M, Reeder MM, Moncada R| title=Amebiasis: modern diagnostic imaging with pathological and clinical correlation. | journal=Semin Roentgenol | year= 1997 | volume= 32 | issue= 4 | pages= 250-75 | pmid=9362096 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9362096 }} </ref> | ||
Ultrasound is the gold standard technique for the diagnosis of amoebic liver abscess. The ultrasound findings include:<ref name=abscess>https://radiopaedia.org/articles/amoebic-hepatic-abscess Accessed on February 7, 2017 </ref><ref name="pmid9362096">{{cite journal| author=Kimura K, Stoopen M, Reeder MM, Moncada R| title=Amebiasis: modern diagnostic imaging with pathological and clinical correlation. | journal=Semin Roentgenol | year= 1997 | volume= 32 | issue= 4 | pages= 250-75 | pmid=9362096 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9362096 }} </ref> | |||
'''Intrahepatic findings''' | '''Intrahepatic findings''' | ||
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*Homogenous hypoechoic areas that can be single or multiple with round edges | *Homogenous hypoechoic areas that can be single or multiple with round edges | ||
*Round or oval in shape and variable size (around 2-6 cm in diameter) | *Round or oval in shape and variable size (around 2-6 cm in diameter) | ||
*An incomplete rim of edema | *An incomplete rim of [[edema]] | ||
*Location near liver capsule | *Location near liver capsule | ||
*Margin of abscess tends to be nodular in around 40% of cases and smooth in 60% of cases | *Margin of [[abscess]] tends to be nodular in around 40% of cases and smooth in 60% of cases | ||
*Internal septations may be present in 30% of cases | *Internal septations may be present in 30% of cases | ||
*Focal intrahepatic biliary dilatation peripheral to an abscess may be present | *Focal intrahepatic [[biliary]] dilatation peripheral to an abscess may be present | ||
'''Extrahepatic findings''' | '''Extrahepatic findings''' | ||
*Pleural effusion | *[[Pleural effusion]] | ||
*Perihepatic fluid collection | *Perihepatic fluid collection | ||
*Gastric or colonic involvement | *[[Gastric]] or [[colon|colonic]] involvement | ||
*Retroperitoneal extension | *[[Retroperitoneal]] extension | ||
==References== | ==References== | ||
{{reflist|2}} | {{reflist|2}} | ||
[[Category:Disease]] | |||
[[Category:Up-To-Date]] | |||
[[Category:Gastroenterology]] | |||
[[Category:Surgery]] | |||
[[Category:Emergency medicine]] | |||
[[Category:Infectious disease]] | |||
[[Category:Hepatology]] | |||
Latest revision as of 20:23, 29 July 2020
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Amoebic liver abscess Microchapters |
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Amoebic liver abscess ultrasound On the Web |
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American Roentgen Ray Society Images of Amoebic liver abscess ultrasound |
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Risk calculators and risk factors for Amoebic liver abscess ultrasound |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Yamuna Kondapally, M.B.B.S[2]
Overview
Ultrasound is the gold standard technique for the diagnosis of amoebic liver abscess. The intrahepatic ultrasound findings include homogenous hypoechoic areas that can be single or multiple with round edges, round or oval in shape and variable size (around 2-6 cm in diameter), an incomplete rim of edema, location near liver capsule, margin of abscess tends to be nodular in around 40% of cases and smooth in 60% of cases, internal septations may be present in 30% of cases, and focal intrahepatic biliary dilatation peripheral to an abscess may be present. The extra hepatic findings include pleural effusion, perihepatic fluid collection, gastric or colonic involvement and retroperitoneal extension.[1][2]
Ultrasonography
Ultrasound is the gold standard technique for the diagnosis of amoebic liver abscess. The ultrasound findings include:[1][2]
Intrahepatic findings
- Homogenous hypoechoic areas that can be single or multiple with round edges
- Round or oval in shape and variable size (around 2-6 cm in diameter)
- An incomplete rim of edema
- Location near liver capsule
- Margin of abscess tends to be nodular in around 40% of cases and smooth in 60% of cases
- Internal septations may be present in 30% of cases
- Focal intrahepatic biliary dilatation peripheral to an abscess may be present
Extrahepatic findings
- Pleural effusion
- Perihepatic fluid collection
- Gastric or colonic involvement
- Retroperitoneal extension
References
- ↑ 1.0 1.1 https://radiopaedia.org/articles/amoebic-hepatic-abscess Accessed on February 7, 2017
- ↑ 2.0 2.1 Kimura K, Stoopen M, Reeder MM, Moncada R (1997). "Amebiasis: modern diagnostic imaging with pathological and clinical correlation". Semin Roentgenol. 32 (4): 250–75. PMID 9362096.