An uncommon hematologic malignancy occurring during childhood. Many of the morphologic, immunophenotypic, and genetic changes seen in adult myelodysplastic syndromes are also observed in the childhood variants of the disease. Children present with neutropenia and thrombocytopenia more often than adults, and bone marrow hypocellularity is more often seen in children than adults.
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myelodysplastic syndrome with single lineage dysplasia
MONDO:0005272
myelodysplastic syndrome associated with isolated del(5q)
MONDO:0007925
refractory anemia with excess blasts in transformation
MONDO:0015692
myelodysplastic syndrome with ring sideroblasts
MONDO:0019157
myelodysplastic syndrome with multilineage dysplasia
MONDO:0019453
myelodysplastic syndrome with excess blasts
MONDO:0019454