The condition associated with lack of intrinsic factor and decreased absorption of cyanobalamin is

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Pernicious anemia is a condition in which there is a lack of intrinsic factor, a protein necessary for the absorption of vitamin B12 (cyanocobalamin) in the small intestine. This results in decreased absorption of cyanocobalamin and ultimately leads to megaloblastic anemia. Pellagra is a condition caused by a deficiency of niacin, not vitamin B12. Scurvy is caused by a deficiency of vitamin C, not vitamin B12.

The Condition Associated with Lack of Intrinsic Factor and Decreased