Triple-phasic CT during hepatic angiography of pelioid hepatocellular carcinoma

We present a case of pelioid hepatocellular carcinoma detected by computed tomography during hepatic angiography and confirmed by pathology. On computed tomography angiography, the lesion showed slight enhancement in the early phase, and enhancement subsequently increased. Lesion enhancement then attenuated in the delayed phase. On T2-weighted image, the lesion was hyperintense, and the inner part of the lesion was hyperintense when compared with the outer part of the lesion. Pathologically, dilated sinusoid-like blood spaces were present within the lesion, and the proportion of these in the inner part of the tumor was greater than that in the outer part.