NCIt related terms : smoldering leukemia; myelodysplastic syndromes; Preleukemia;
NCIt definition : A clonal hematopoietic disorder characterized by dysplasia and ineffective hematopoiesis
in one or more of the hematopoietic cell lines. The dysplasia may be accompanied by
an increase in myeloblasts, but the number is less than 20%, which, according to the
WHO guidelines, is the requisite threshold for the diagnosis of acute myeloid leukemia.
It may occur de novo or as a result of exposure to alkylating agents and/or radiotherapy.
(WHO, 2001);
Alternative definition : CTCAE: A disorder characterized by insufficiently healthy hematapoietic cell production
by the bone marrow.; NICHD: A pre-malignant disorder characterized by blood cytopenias and abnormalities
in bone marrow morphology.; NCI-GLOSS: A group of diseases in which the bone marrow does not make enough healthy
blood cells.;
Neoplastic status : Malignant;
ICD-O code : 9989/3;
Codes from synonyms : CDR0000045480; CDR0000045953; E12552; CDR0000046583; CDR0000045266;