Medicine Immune system b75ca3b4 All are true about Bloom syndrome except A Decreased levels of Igg B (downward arrow) IgM C Ig A absent D Raised IgE leveis High-Yield Explanation Bloom's syndrome malignancies-Leukaemia, tongue, oesophageal, colonic, Wilms'tumourAR BLM gene Ref Davidson 23rd edition pg 587