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Case Reports
. 2015 Nov;22(6):58-62.

Early Diagnosis of Intrahepatic Pseudoaneurysm during Radiofrequency Ablation using Contrast-Enhanced Ultrasound

S Krishna Kumar  1 , Ong Keh Oon  2 , Paul Horgan  3 , Edward Leen  4
Affiliations
Case Reports

Early Diagnosis of Intrahepatic Pseudoaneurysm during Radiofrequency Ablation using Contrast-Enhanced Ultrasound

S Krishna Kumar et al. Malays J Med Sci. 2015 Nov.

Abstract

Radiofrequency ablation is one of the more established forms of local treatment in patients with unresectable tumours, including colorectal hepatic metastases. Complications associated with this method of intervention include thermal and mechanical injuries, including vascular insults resulting in haemorrhage or pseudoaneurysm formation. This is the first case demonstrating the detection of post-ablation acute pseudoaneurysm formation identified on the table using contrast-enhanced ultrasound (CEUS) and the subsequent successful management.

Keywords: ablation; hepatic; metastasis; pseudoaneurysm; radiofrequency.

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Conflict of interest statement

Conflict of Interest None.

Figures

Figures 1a,b,c
Figures 1a,b,c
Sequential unenhanced ultrasound images show expanding pseudoaneurysm.
Figures 2a
Figures 2a
Contrast-enhanced ultrasound image shows microbubble contrast agent in the haematoma (arrow) confirming the pseudoaneurysm.
Figures 2b
Figures 2b
Post embolisation contrast-enhanced ultrasound image shows no contrast agent in the haematoma (arrow) confirming complete devascularization.
Figures 3a
Figures 3a
Computed tomography image shows focal enhancement in the pseudoaneurysm (black arrow) adjacent to the ablation zone (white arrow).
Figures 3b
Figures 3b
Computed tomography image shows no enhancement in the pseudoaneurysm (black arrow) adjacent to the ablation zone (white arrow).
See this image and copyright information in PMC

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