Just got into a bit of a panic I was diagnosed with pbc last week and ordered the DVD on PBC from Liver North. The doctor talks about a more aggressive type of PBC that 10 per cent of patients have. High IGG levels being one of the factors and that they diagnose steroids to help this. No mention was made of this at my consultation although they did want me to have a biopsy. I do have high IGG and IGM levels, can anybody explain this further please.