Which WHO classification for MDS is best supported when the peripheral blood shows a general cytopenia, 5-19% blasts with Auer rods, and less than 1 x10⁹ /L monocytes?

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This presentation is consistent with refractory anemia with excess blasts 2, which is characterized by 5-19% blasts in the peripheral blood and/or bone marrow, with Auer rods present in at least some of the blasts. The general cytopenia also supports this classification. The low monocyte count rules out RAEB-1, which requires at least 1 x10^9/L monocytes, and 5Q-syndrome, which has a deletion in chromosome 5q and typically presents with isolated thrombocytosis rather than cytopenia. Refractory cytopenia with multilineage dysplasia would require dysplastic changes in multiple cell lines, which is not specified in this scenario.

Which WHO Classification for MDS Is Best Supported When the Peripheral