PCR tests for CMV, EBV and HSV were also repeated and gave negative results. The biomarkers test was also repeated and showed her serum level of beta 2 microglobulin to be higher than 9000 mg/ml (normal value <2000). Her serum IL-2R was 850 IU/ml (normal value <500 IU/ ml) and serum TNF was lower than 20 pg/ml. A liver biopsy was then performed and showed a mild chronic inflammatory infiltration with no evidence of bile tract enlargement, foamy macrophage (hypercholesterolemia hypertriglyceridemia state), mild sinusoidal fibrosis and macrophage with intracellular iron pigmentation.