Fig. 1

a Histology of explanted native liver showing biliary cirrhosis with annular fibrosis delimiting irregular parenchymal nodules (PicroSirius staining, × 15) and b moderate septal inflammation with some ductular reaction, canalicular bilirubinostasis and cholestasis changes in periseptal hepatocytes (H&E staining, × 120).c Immunochemistry study of the patient’s explanted native liver showing typical and even canalicular distribution of BSEP staining; d whereas the pattern of MDR3 canalicular staining is inconsistent and granular cytoplasmic signal observed within a proportion of hepatocytes. Within the control healthy liver, e regular canalicular BSEP and f MDR3 staining were observed