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Gadolinium-enhanced MRI demonstrating an enhanced nodule on the periphery of the right hepatic lobe (white arrow)
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Four years later, surveillance magnetic resonance imaging (MRI) revealed a 1.2-cm enhancing nodule; it was unclear from imaging whether the nodule was a surface implant or in the periphery of segment V (Figure 1).
After hydrodissection, the nodule was identified as a peritoneal implant (white arrow). Black asterisk indicates hydrodissection fluid
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This revealed that the nodule was a peritoneal deposit (Figure 2).
Axial CT image demonstrating microwave antenna (white arrow) in the peritoneal nodule. Microwave ablation was performed utilising 40 W x 3 minutes
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Subsequently, CT-guided MWA of the peritoneal nodule was performed using 40 watts for three minutes (Figure 3).
Gadolinium-enhanced T1-fat saturated MRI of the liver obtained one-month post MWA of peritoneal nodule. White arrow shows ablated area with no evidence of residual disease
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A gadolinium-enhanced MRI obtained one month later showed no evidence of residual disease or peritoneal fluid accumulation (Figure 4).