Metastasis: Arterially Enhancing Liver Lesion
Cancers are sorted by a combination of rarity, overall frequency of metastases, and predilection for this site.
| Cancer | Frequency | Comments |
| Hepatocellular Carcinoma | (Primary Tumor) |  HCC lesions are arterially enhancing (versus normal liver or regenerating nodules, which enhance with the portal venous phase). The display wash-out, i.e. decreased enhancement compared to liver on PV phase. |
| Hepatocellular Carcinoma | Common | |
| Renal Cell Carcinoma | Uncommon | |
| Pancreatic Neuroendocrine | Common | overall, a very common site for metastasis (seen in about half of all pancreatic neuroendocrine tumors). However it is almost never seen from insulinomas and uncommon in VIPoma and gastrinoma. |
| Gastrointestinal Carcinoid | Common | most common distant site. Metastases will be hyperenhancing in the arterial phase, although they may become isointense to liver on later phases. |