raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:98835

Acute undifferentiated leukemia

Synonyms: Acute myeloid leukemia, minimal differentiation, FAB M0

Type
Disease
Group
Disorder
Status
active

A rare acute leukemia of ambiguous lineage characterized by clonal proliferation of primitive hematopoietic cells, primarily in the bone marrow and blood, lacking lineage-specific markers and detectable genotypic alterations. The patients present with leukocytosis, anemia, variable platelet count and a variety of nonspecific symptoms related to ineffective hematopoesis (fatigue, bleeding and bruising, recurrent infections, bone pain) and/or extramedullary site involvement (lymphadenopathy, splenomegaly, hepatomegaly).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAcute undifferentiated leukemiaAcute myeloid leukemia, minimal differentiation, FAB M0
frLeucémie aiguë non différenciéeLeucémie myéloïde aiguë avec différenciation minimale (FAB M0)
deLeukämie, akute undifferenzierteMinimal differenzierte akute myeloische Leukämie, FAB M0
esLeucemia aguda indiferenciadaLeucemia mieloide aguda, diferenciación mínima, FAB M0
itLeucemia acuta indifferenziata
nlAcute ongedifferentieerde leukemieAcute myeloïde leukemie, minimale differentiatie, FAB MO
ptLeucemia, indiferenciada, aguda
plOstra białaczka niezróżnicowana= en
csAkutní nediferencovaná leukémie= en
ukГострий недиференційований лейкозГостра мієлоїдна лейкемія, мінімальна диференціація, FAB M0
zh急性未分化白血病微分化急性髓系白血病FAB M0型
trAkut farklılaşmamış lösemiAkut miyeloid lösemi, minimal farklılaşma, FAB M0

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM601626NTBTvalidated
ICD-10C95.0NTBTattributedvalidated
ICD-112B33.0NTBTattributedvalidated
MONDO0020321Evalidated
UMLSC0280141Evalidated
MedDRA10073479Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
KMT2APart of a fusion gene inAssessedHGNC:7132ENSG0000011805815955511q23.3lysine methyltransferase 2A11579461[PMID]
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Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card