There are a number of prognostic factors associated with hepatoblastoma. One group is referred by the abbreviations VPEFR.
Code
Expansion
References
V
vena cava
all 3 hepatic veins and/or the intrahepatic inferior vena cava
P
portal vein
both left and right portal veins and/or the portal bifurcation
E
extrahepatic extension
contiguous intra-abdominal spread into adjacent organs (diaphragm, colon, etc)
F
multi-Focal
>= 2 tumor nodules separated by normal hepatic parenchyma
R
rupture
tumor rupture at diagnosis
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Specialty: Hematology Oncology, Gastroenterology, Pedatrics