Hemodynamics of Small Hepatic Focal Nodular Hyperplasia
Evaluation with Single-Level Dynamic CT During Hepatic Arteriography
Shiro Miyayama1,
Osamu Matsui2,
Kazuhiko Ueda3,
Koichi Kifune1,
Masashi Yamashiro1,
Tatsuya Yamamoto1,
Tetsuya Komatsu1 and
Tomoyasu Kumano1
1
Department of Diagnostic Radiology, Fukuiken Saiseikai Hospital, 7-1,
Wadanaka-cho, Funabashi, Fukui 918-8503, Japan.
2
Department of Radiology, Kanazawa University Hospital, 13-1, Takara-machi,
Kanazawa 920-8641, Japan.
3
Department of Radiology, Kaga Central Hospital, 65, Hakkenmichi, Daishoji-cho,
Kaga 922-0436, Japan.
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Fig. 1A. —49-year-old woman with biopsy-proven focal nodular hyperplasia.
Single-level dynamic CT during hepatic arteriography (CTHA) image obtained 4
sec after contrast material injection reveals centrifugal blood supply and
feeding artery entering through central scar.
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Fig. 1B. —49-year-old woman with biopsy-proven focal nodular hyperplasia.
Single-level dynamic CTHA image obtained 10 sec after contrast material
injection shows dense enhancement of nodule (except for central scar).
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Fig. 1C. —49-year-old woman with biopsy-proven focal nodular hyperplasia.
Single-level dynamic CTHA image obtained 13 sec after contrast material
injection reveals veins in central scar (arrows). Margins of lesion
are beginning to change from irregular to round.
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Fig. 1D. —49-year-old woman with biopsy-proven focal nodular hyperplasia.
Single-level dynamic CTHA image obtained 16 sec after contrast material
injection shows fibrous scar becoming isoattenuated with surrounding
nodule.
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Fig. 2A. —20-year-old man with focal nodular hyperplasia that was diagnosed on
the basis of single-photon emission CT findings and clinical follow-up.
Single-level dynamic CT during hepatic arteriography (CTHA) image obtained 1
sec after contrast material injection shows feeding arteries.
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Fig. 2B. —20-year-old man with focal nodular hyperplasia that was diagnosed on
the basis of single-photon emission CT findings and clinical follow-up.
Single-level dynamic CTHA image obtained 9 sec after contrast material
injection shows dense enhancement of nodule (except for central scar).
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Fig. 2C. —20-year-old man with focal nodular hyperplasia that was diagnosed on
the basis of single-photon emission CT findings and clinical follow-up.
Single-level dynamic CTHA image obtained 12 sec after contrast material
injection shows veins near central scar and at junction with adjacent nodule
(arrows). Margins of lesion are beginning to change from irregular to
round.
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Fig. 3A. —39-year-old woman with biopsy-proven focal nodular hyperplasia.
Single-level dynamic CT during hepatic arteriography (CTHA) image obtained 4
sec after contrast material injection shows feeding artery entering through
fibrous scar.
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Fig. 3B. —39-year-old woman with biopsy-proven focal nodular hyperplasia.
Single-level dynamic CTHA image obtained 9 sec after contrast material
injection shows dense enhancement of nodule (except central scar). Note
appearance of vein (arrow) in central scar.
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