True about alpha-1 antitrypsin deficiency,is :: (A) Autosomal dominant, (B) Pulmonary emphysema, (C) Disease resistant hepatic cells, (D) Hepatic cells are orcein stain positive
Answer is B. Alpha-1 antitrypsin deficiency is an autosomal recessive disease marked by abnormally low serum levels of alpha1 AT enzyme resulting in panacinar emphysema.(ref Robbins 9/e p675-676)