Summary
A 3-cm lesion indicative of focal nodular hyperplasia (FNH) of the liver was coincidentally detected in a 21-year-old female. Ultrasonography (US), computed tomography (CT), magnetic resonance (MR) imaging and liver scintigraphy all proved nonspecific. However, color Doppler US demonstrated characteristic vascular patterns of FNH of the liver, including (a) hypervascularity of the mass, (b) an enlarged afferent blood vessel in the tumor with blood flow toward the center of the tumor, and (c) arterial pulse waves in all the vessels in the lesion, detected by means of the fast Fourier transformation (FFT). With selective hepatic angiography, a “spoke-wheel” pattern was revealed. The angiographic pattern corresponded well to that shown by color Doppler US. On the basis of the findings from these two modalities, the diagnosis of FNH was made. This report examines the effectiveness of color Doppler US in the differential diagnosis of FNH, compared with other imaging modalities.
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Yamamoto, H., Yamanaka, T., Yoshida, Y. et al. Detection of focal nodular hyperplasia of the liver with color Doppler ultrasonography. Gastroenterol Jpn 28, 424–430 (1993). https://doi.org/10.1007/BF02776989
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DOI: https://doi.org/10.1007/BF02776989