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. 2020 Sep 29;26(6):531–540. doi: 10.5152/dir.2020.19569

Table.

Liver imaging reporting and data system (LI-RAD) v2018 (7) criteria for tumor in vein

Tumor in vein (LR-TIV):

  • Unequivocal enhancing soft tissue in vein, regardless of visualization of parenchymal mass

Other imaging features that suggest the presence of TIV but do not establish its diagnosis:

  • Occluded vein with ill-defined walls

  • Occluded vein with restricted diffusion

  • Occluded or obscured vein in contiguity with malignant parenchymal mass

  • Heterogeneous vein enhancement not attributable to artifact

Reporting:

  • If contiguous with targetoid mass report as “LR-TIV, may be due to non HCC malignancy”

  • If contiguous with LR-5 mass report as “LR-TIV, definitely due to HCC”

  • Otherwise report as “LR-TIV, probably due to HCC”