Liver nodules were examined by US, CT, MRI, and CT during arterial portography (CTAP), CT arteriography (CTA), and 99mTc-stannous colloid scintigraphy, and the imaging features of the nodules were as follows. The nodules increased
radionuclide uptake on 99mTc-stannous colloid scintigraphy. On ultrasonography, three nodules at S3, S5, and S6 showed
hyperechogenicity, although many were not identified. Power Doppler mode showed rich vascularity within the hyperechoic
nodules, and FFT analysis showed continuous wave. CTAP and CTA showed that the blood supply to the nodules was mainly
portal. Pathologic evaluation showed definite nodular transformation, and a dilated portal vein was found within the large
nodules. These findings clearly appear to reflect the pathologic features of the nodules.