Table 3. Pattern of enhancement of nodules in hepatocarcinogenesis.
| Imaging feature | RN | LGDN | A-P shunts | HGDN | HCC |
|---|---|---|---|---|---|
| NE-CT | hyper | hyper | iso | hyper | hypo (iso, hyper) |
| T1W | iso to hyper | iso to hyper | iso | iso to hyper | hypo |
| T2W | hypo | iso to hyper | iso | iso | hyper |
| Enhancement in HAP | iso | iso | hyper | hyper | hyper |
| Wash-out | none | none | none | none | present +/- pseudocapsule |
| HBP | iso to hyper | iso to hyper | iso to hyper | iso | hypo |
| DWI | iso | iso | iso | iso | hyper |
A-P SHUNTS - arterio-portal shunts, DWI - diffusion weighted imaging, HAP - hepatic arterial phase, HBP - hepatobiliary phase, HCC - hepatocellular carcinoma, HGDN - high grade dysplastic nodule, LGDN - low grade dysplastic nodule, NE-CT - non-enhanced computed tomography, RN - regenerative nodule, T1W - T1-weighted image, T2W - T2-weighted image.