Case 1 - Absent iron.

Case 2 - Normal iron.

Case 3 - Megaloblastic.

Case 4 - Normal.

Case 5 - Acute leukemia.

Case 6 - Cancer cells.

Case 7 - Erythroid hyperplasia.

Case 8 - Erythroid hyperplasia.

Case 9 - Absent iron. Megakaryocytes normal.

Case 10 - Normoblastic.

Case 11 - Excess lymphocytes.

Case 12 - 64% plasma cells.