Myelodysplastic syndrome with ring sideroblasts and with single lineage dysplasia (MDS-RS-SLD)

Marrow aspirate smear with an adequate cellularity and with a mild increase in the number of erythroid precursors.

Marrow aspirate smear: many dysplastic erythroblasts (green arrows) with pyknotic nuclei, dehaemoglobinised cytoplasm and basophilic stippling, a few granulocytes.

Marrow aspirate smear: three dysplastic erythroblasts (green arrows) with pyknotic nuclei, dehaemoglobinised cytoplasm and basophilic stippling, a few granulocytes.

Iron-stained marrow aspirate smear with many ring sideroblasts (green arrows), which account for 15% or more of the red cells precursors.