Ataxia telangiectasia is chracterised by all of the following except :: (A) Chronic sinopulmonary disease, (B) Decreased level of a-fetoprotein, (C) Chromosomal breakage, (D) IgA deficiency
Answer is B. Answer is B (Decreased levels of a fetoproteins) Persistance of very high levels of oncofetal proteins, including alpha fetoproteins and carcinoembryonic antigens is of diagnostic value - Harrison All other features mentioned as options are characteristics of Ataxia-telengiectasia