Final answer:
Pernicious anemia is the condition characterized by macrocytic, megaloblastic anemia with neurologic symptoms. It is caused by poor absorption of vitamin B12 and can lead to neurologic symptoms such as numbness and tingling. This condition results in the production of large, immature red blood cells, causing anemia.
Step-by-step explanation:
The condition characterized by macrocytic, megaloblastic anemia with neurologic symptoms is pernicious anemia.
Pernicious anemia is caused by poor absorption of vitamin B12 and is often seen in patients with Crohn's disease, surgical removal of the intestines or stomach, intestinal parasites, and AIDS.
This condition results in the production of large, immature red blood cells, causing anemia and leading to neurologic symptoms such as numbness and tingling in the extremities, difficulty walking, and memory problems.