A case of focal nodular hyperplasia with a new characteristic finding on contrast-enhanced ultrasonography using Levovist.
We used contrast-enhanced ultrasound with Levovist, a microbubble contrast agent, to diagnose a case of hepatic focal nodular hyperplasia (FNH). A new characteristic finding of heartbeat-synchronized centrifugal enhancement was discovered. We call this enhancement pattern the "sonographic fireworks sign." It is expected to be useful for diagnosing FNH, especially when the lesions are small and it is difficult to depict a spoke-wheel pattern.
Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan. kolive23@gmail.com.
Kaoru
K
Onoue
Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan.
Yukio
Y
Miyamoto
Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan.
Makiko
M
Nishioka
Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan.
Norio
N
Nakata
Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan.
Toru
T
Sekiya
Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan.
Kunihiko
K
Fukuda
Contrast-enhanced sonography; FNH; Galactose/palmitic acid