American Society of Hematology

$WHO (2008) classification of MDS/MPNs: disease definitions and key molecular features. Chronic myelomonocytic leukemia (CMML), atypical chronic myeloid leukemia (aCML), MDS/MPN-U, and left juvenile myelomonocytic leukemia (JMML) micrographs are Wright-Giemsa stained marrow aspirate. Right JMML micrograph is a CD68 immunostain highlighting neoplastic marrow monocytes, and refractory anemia with ring sideroblasts and thrombocytosis (RARS-T) image is a Prussian blue reaction demonstrating numerous ring sideroblasts. Microscopy conditions are described at http:imagebank.hematology.org. GM-CSF, granulocyte-macrophage colony stimulating factor; Hb F, fetal hemoglobin; MPN-U, unclassifiable MDS/MPN; WBC, white blood count; WHO, World Health Organization. Image source: ASH Image Bank (© American Society of Hematology); images (top to bottom) 2149, 2224, 2627, 4031, 2119, 1095, and 1098.$

WHO (2008) classification of MDS/MPNs: disease definitions and key molecular features. Chronic myelomonocytic leukemia (CMML), atypical chronic myeloid leukemia (aCML), MDS/MPN-U, and left juvenile myelomonocytic leukemia (JMML) micrographs are Wright-Giemsa stained marrow aspirate. Right JMML micrograph is a CD68 immunostain highlighting neoplastic marrow monocytes, and refractory anemia with ring sideroblasts and thrombocytosis (RARS-T) image is a Prussian blue reaction demonstrating numerous ring sideroblasts. Microscopy conditions are described at http:imagebank.hematology.org. GM-CSF, granulocyte-macrophage colony stimulating factor; Hb F, fetal hemoglobin; MPN-U, unclassifiable MDS/MPN; WBC, white blood count; WHO, World Health Organization. Image source: ASH Image Bank (© American Society of Hematology); images (top to bottom) 2149, 2224, 2627, 4031, 2119, 1095, and 1098.

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