Pyogenic liver abscess MRI

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Yamuna Kondapally, M.B.B.S [2]

Overview

MRI findings of pyogenic liver abscess include hypointense and heterogenous centrally on T1, hyperintense signal on T2, enhancement of the capsule and multiple septations on T1+C, high signal within the abscess cavity on DWI, and low signal within the abscess on ACD.^[1]^[2]^[3]

MRI

MRI findings of pyogenic liver abscess include:^[1]^[2]^[3]

T1

Hypointense centrally
Heterogenous

T2

Hyperintense signal
High signal intensity on T2 weighted images signifies perilesional edema

T1+C(Gd)

Enhancement of the capsule
Multiple septations

DWI

High signal within the abscess cavity

ACD

Low signal within the abscess cavity

References

↑ ^1.0 ^1.1 Méndez RJ, Schiebler ML, Outwater EK, Kressel HY (1994). “Hepatic abscesses: MR imaging findings”. Radiology. 190 (2): 431–6. doi:10.1148/radiology.190.2.8284394. PMID 8284394.
↑ ^2.0 ^2.1 https://radiopaedia.org/articles/hepatic-abscess-1 Accessed on February 24, 2017
↑ ^3.0 ^3.1 Chan JH, Tsui EY, Luk SH, Fung AS, Yuen MK, Szeto ML; et al. (2001). “Diffusion-weighted MR imaging of the liver: distinguishing hepatic abscess from cystic or necrotic tumor”. Abdom Imaging. 26 (2): 161–5. PMID 11178693.

[pmid8284394-1] 1.0 ^1.1 Méndez RJ, Schiebler ML, Outwater EK, Kressel HY (1994). “Hepatic abscesses: MR imaging findings”. Radiology. 190 (2): 431–6. doi:10.1148/radiology.190.2.8284394. PMID 8284394.

[abscess-2] 2.0 ^2.1 https://radiopaedia.org/articles/hepatic-abscess-1 Accessed on February 24, 2017

[pmid11178693-3] 3.0 ^3.1 Chan JH, Tsui EY, Luk SH, Fung AS, Yuen MK, Szeto ML; et al. (2001). “Diffusion-weighted MR imaging of the liver: distinguishing hepatic abscess from cystic or necrotic tumor”. Abdom Imaging. 26 (2): 161–5. PMID 11178693.

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