SALL4 and cholangiocarcinoma: However, Sall4 expression was undetectable in myrAkt–N1ICD-driven CCA (AN-CCA), KRASG12D-sg-p19-driven CCA (KP19-CCA), β-CatS45D+Met-HCC, and β-CatS45D+Nrf2G31A-HCC, suggesting its context-dependent expression in murine liver cancer subtypes (Fig. 1A).