Least likely to be Pre-leukemic condition is: (A) Paroxysmal nocturnal hemoglobinuria, (B) Paroxysmal cold hemoglobinuria, (C) Aplastic anemia, (D) Myelodysplastc syndrome
Answer is B. Myelodysplastic syndrome refers to a range of blood disorders. They are cancersin which newly created blood cells in the bone marrow do not develop into healthy working blood cells. Myelodysplastic syndrome (MDS) has often been referred to as pre-leukemia or smoldering leukemia. Refer robbins 9/e