What are macrocytic anemia and mild absolute leukocytopenia?

Both are ways of....: Describing features of blood cells. Anemia means your red cell mass is 2 standard deviations below the lower norm for age and sex. Macrocytic means the rbcs are bigger than expected (normal red cell size falls within a normal range) and size gives us clues as to the cause of the anemia. Leukopenia means your total WBC count is below normal. A differential is really needed to interpret leukopenia.