A 50 year old man presents with paresthesia. Hb = 6.8 gms/dl. Peripheral smear shows macrocytes and neutrophis with hypersegmented nuclei. Endoscopy reveals atroghic gastritis. Which of the following deficiency is more likely?
High-Yield Explanation
above clinical features point towards Vit B12 deficiency due to Pernicious anemia. Pernicious anemia -Type II Hypersensitivityin which ABs are formedagainst intrinsic factorthus inhibits the binding of IF+B12. Intrinsic factor deficiency-Malabsorption of vitamin B12 - Megaloblastic anemia /Pernicious anemia