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Diaphragmatic Hernia After Radiofrequency Ablation Therapy for Hepatocellular Carcinoma

Akitaka Shibuya1, Takahide Nakazawa1, Katsunori Saigenji1, Kazunori Furuta2 and Keiji Matsunaga3

1 Department of Gastroenterology, Kitasato University School of Medicine, 1-15-1, Kitasato, Sagamihara, Kanagawa 228-8555, Japan.
2 Department of Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa 228-8555, Japan.
3 Department of Radiology, Kitasato University School of Medicine, Sagamihara, Kanagawa 228-8555, Japan.


Figure 1
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  		Fig. 1A —72-year-old man with hepatocellular carcinoma (HCC). Transverse contrast-enhanced CT scan obtained during arterial phase before radiofrequency ablation shows hyperattenuating HCC on border of hepatic segments IV and VIII that is 28 mm in diameter.

 

Figure 2
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  		Fig. 1B —72-year-old man with hepatocellular carcinoma (HCC). Posttreatment T2-weighted respiratory-triggered fast spin-echo image (TR/TE, 6,666/84) shows isointense homogeneous area with hyperintense rim. Liver was atrophic, and surface was depressed in treatment region.

 

Figure 3
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  		Fig. 1C —72-year-old man with hepatocellular carcinoma (HCC). Coronal MDCT image of chest shows portion of small intestine in right lower thorax, indicating accurately and clearly anatomic relationships of diaphragmatic defect (arrows). Imaging parameters were 120 kVp, 350 mA (automatic milliampere setting), 0.6 sec/rotation, 16 slices x 1.25 mm detector configuration, and 1.375 pitch. Reconstruction interval was 1.25 mm.

 

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