The following table or figure may be downloaded to PowerPoint for personal use in teaching and presentations. This feature is available to all subscribers to the journal.

You MUST read and follow the guidelines at Request to Reproduce AJR Content if you are distributing or using AJR content beyond academic use (limited distribution, non-revenue producing, or educational purposes).

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)

Fig. 7. —47-year-old man with hepatocellular carcinoma. Arterial-phase helical CT scan reveals focal area of early enhancement (arrow) attributable to hepatocellular carcinoma. Such enhancement is related to neovascularity and increased capillary permeability in tumor. Both CT and MR arterial-phase imaging exploit process of tumor angiogenesis to reveal tumors.