Least likely to be Pre-leukemic condition is
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
Paroxysmal nocturnal hemoglobinuria
Paroxysmal cold hemoglobinuria
Aplastic anemia
Myelodysplastc syndrome
Haematology