raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:99861

Precursor T-cell acute lymphoblastic leukemia

Synonyms: Precursor T-cell acute lymphoblastic leukemia/lymphoma · Precursor T-cell acute lymphocytic leukemia · Precursor T-cell acute lymphocytic leukemia/lymphoma · T-ALL

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Adolescent, Adult
Status
active

A rare acute lymphoblastic leukemia characterized by a neoplasm of lymphoblasts committed to the T-cell lineage, involving bone marrow and blood. A value of >25% bone marrow blasts may be used to define leukemia (as opposed to lymphoma) in cases with the presence of a mass lesion in addition to bone marrow involvement. Patients typically present with leukocytosis, and frequently with a large mediastinal or other tissue mass. Lymphadenopathy and hepatosplenomegaly are common.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPrecursor T-cell acute lymphoblastic leukemiaPrecursor T-cell acute lymphoblastic leukemia/lymphoma · Precursor T-cell acute lymphocytic leukemia · Precursor T-cell acute lymphocytic leukemia/lymphoma · T-ALL
frLeucémie aiguë lymphoblastique à précurseurs TLAL-T · Leucémie aiguë lymphocytique à précurseurs T · Leucémie/lymphome aiguë lymphoblastique à précurseurs T · Leucémie/lymphome aiguë lymphocytique à précurseurs T
deAkute lymphoblastische T-Vorläuferzell-LeukämieT-ALL · T-Vorläuferzell-Leukämie/Lymphom, akut lymphoblastisch · Vorläufer T-Zell-lymphoblastische Leukämie/lymphoblastisches Lymphom
esLeucemia linfoblástica aguda de precursores de células TLLA-T · Leucemia linfocítica aguda de precursores de células T · Leucemia/linfoma linfocítico agudo de precursores de células T
itLeucemia linfoblastica acuta da precursori delle cellule TLeucemia linfocitica acuta da precursori delle cellule T · Leucemia/linfoma linfoblastica acuta da precursori delle cellule T · Leucemia/linfoma linfocitica acuta da precursori delle cellule T · T-ALL
nlPrecursor T-cel acute lymfoblastische leukemiePrecursor T-cel acute lymfoblastische leukemie/lymfoom · Precursor T-cel acute lymfocytische leukemie · Precursor T-cel acute lymfocytische leukemie/lymfoom · T-ALL
ptLeucemia, células percussoras T linfoblásticas, aguda
plOstra białaczka limfoblastyczna z prekursorowych komórek TOstra białaczka limfocytowa z prekursorowych komórek T · Ostra białaczka/chłoniak limfoblastyczna z prekursorowych komórek T · Ostra białaczka/chłoniak limfocytowa z prekursorowych komórek T · T-ALL
csAkutní lymfoblastická leukémie z prekurzorů T-buněkT-ALL · Akutní lymfoblastická leukémie/lymfom s prekurzory T-buněk · Akutní lymfocytická leukémie s prekurzory T-buněk
ukГостра пре-Т-клітинна лімфобластна лейкеміяПре Т-клітинна гостра лімфобластна лейкемія/лімфома · Пре Т-клітинна гостра лімфоцитарна лейкемія · Пре Т-клітинна гостраї лімфоцитарна лейкемя/лімфома · T-ALL
zh前体T细胞急性淋巴细胞白血病前体T细胞急性淋巴细胞白血病/淋巴瘤
trPrekürsör T hücreli akut lenfoblastik lösemiT-ALL · Öncül T hücreli akut lenfositik lösemi · Öncü T hücreli akut lenfositik lösemi/lenfoma · Öncül T hücreli akut lenfoblastik lösemi/Lenfoma

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C91.0NTBTattributedvalidated
ICD-112A71Especificvalidated
MONDO0020512Evalidated
MeSHD054218Evalidated
UMLSC1961099Evalidated

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

22 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CDKN2ADisease-causing somatic mutation(s) inAssessedHGNC:1787ENSG000001478896001609p21.3cyclin dependent kinase inhibitor 2A18838613[PMID]
CNOT3Disease-causing somatic mutation(s) inNot yet assessedHGNC:7879ENSG0000008803860491019q13.42CCR4-NOT transcription complex subunit 323263491[PMID]
FLT3Disease-causing somatic mutation(s) inAssessedHGNC:3765ENSG0000012202513635113q12.2fms related receptor tyrosine kinase 316234090[PMID]
ABL1Part of a fusion gene inAssessedHGNC:76ENSG000000970071899809q34.12ABL proto-oncogene 1, non-receptor tyrosine kinase29279377[PMID]
BCRPart of a fusion gene inAssessedHGNC:1014ENSG0000018671615141022q11.23BCR activator of RhoGEF and GTPase
DDX3XPart of a fusion gene inAssessedHGNC:2745ENSG00000215301300160Xp11.4DEAD-box helicase 3 X-linked23673860[PMID]
MLLT10Part of a fusion gene inAssessedHGNC:16063ENSG0000007840360240910p12.31MLLT10 histone lysine methyltransferase DOT1L cofactor23673860[PMID]
MYBPart of a fusion gene inAssessedHGNC:7545ENSG000001185131899906q23.3MYB proto-oncogene, transcription factor
MYCPart of a fusion gene inAssessedHGNC:7553ENSG000001369971900808q24.21MYC proto-oncogene, bHLH transcription factor
NUP214Part of a fusion gene inAssessedHGNC:8064ENSG000001268831143509q34.13nucleoporin 21429279377[PMID]
PICALMPart of a fusion gene inAssessedHGNC:15514ENSG0000007392160302511q14.2phosphatidylinositol binding clathrin assembly protein
SALL2Part of a fusion gene inAssessedHGNC:10526ENSG0000016582160221914q11.2spalt like transcription factor 229279377[PMID]
SETPart of a fusion gene inAssessedHGNC:10760ENSG000001193356009609q34.11SET nuclear proto-oncogene29279377[PMID]
STILPart of a fusion gene inAssessedHGNC:10879ENSG000001234731815901p33STIL centriolar assembly protein
TAL1Part of a fusion gene inAssessedHGNC:11556ENSG000001623671870401p33TAL bHLH transcription factor 1, erythroid differentiation factor
TCL1APart of a fusion gene inAssessedHGNC:11648ENSG0000010072118696014q32.13TCL1 family AKT coactivator A
TLX1Part of a fusion gene inAssessedHGNC:5056ENSG0000010780718677010q24.31T cell leukemia homeobox 122516255[PMID]_22516263[PMID]
TLX3Part of a fusion gene inAssessedHGNC:13532ENSG000001644386046405q35.1T cell leukemia homeobox 322516255[PMID]_22516263[PMID]
TRAPart of a fusion gene inAssessedHGNC:1202714q11.2T-cell receptor alpha locus29279377[PMID]
TRBPart of a fusion gene inAssessedHGNC:121557q34T-cell receptor beta locus
TRDPart of a fusion gene inAssessedHGNC:1225214q11.2T-cell receptor delta locus
ZBTB16Part of a fusion gene inAssessedHGNC:12930ENSG0000010990617679711q23.2zinc finger and BTB domain containing 1629279377[PMID]
5

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