TP53 and Portal vein thrombosis: On multivariable analysis, TP53 (HR = 53.3, 95% CI: 2.0–1396.1, p = 0.02), as was the presence of portal vein thrombosis (HR = 26.3, 95% CI: 2.4–292.9, p = 0.06), were retained as a negative prognostic factor.