ALB and hepatocellular carcinoma: Subgroup analysis of LR-M observations showed that the significant differences in age, albumin, α-fetoprotein, and CA19-9 between HCC with atypical imaging features and non-HCC malignancies were mainly due to significant differences between HCC and iCCA: age (P = 0.002), underlying cirrhosis (P = 0.014), albumin (P<0.001), α-fetoprotein (P<0.001) and CA19-9 (P<0.001) (Table 2).