Amoebic liver abscess ultrasound
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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.