Pyogenic 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
The ultrasound findings include:[1][2]
- Round or oval shape
- Hypoechoic appearance with fine and homogeneous echoes
- Gas bubbles may be seen
- Absence of central perfusion on color doppler
Contrast Enhanced Ultrasound
- Enhancement during arterial phase and progressive washout during portal or late phases
- The liquefied necrotic area does not enhance
Advantages
- The lesion may appear solid and mimic a hepatic tumor, in patients with monomicrobial K. pneumoniae abscesses.
- The use of contrast allows one to measure the size of the necrotic area, characterize the lesion, and to depict internal septations for management purposes
- In highly septated abscesses and in small abscesses (under 3 cm) drainage is not recommended
References
- ↑ Ralls PW, Barnes PF, Radin DR, Colletti P, Halls J (1987). "Sonographic features of amebic and pyogenic liver abscesses: a blinded comparison". AJR Am J Roentgenol. 149 (3): 499–501. doi:10.2214/ajr.149.3.499. PMID 3303877.
- ↑ https://radiopaedia.org/articles/hepatic-abscess-1 Accessed on February 26, 2017