raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:86875

Adult T-cell leukemia/lymphoma

Synonyms: ATLL

Type
Disease
Group
Disorder
Inheritance
Multigenic/multifactorial, Not applicable
Age of onset
Adult
Status
active

A rare, virus associated tumor due to human T-cell leukemia virus type 1 or human T-cell lymphotropic virus type 1 (HTLV-1) and is characterized by the presence of anti-HTLV-1 antibodies, and malignant, mature, medium-sized T cells with condensed chromatin and polylobated nuclei. The malignant cells exhibit a mature CD4+ T cells phenotype and express CD2, CD5, CD25, CD45RO, HLA-DR, and T-cell receptor αβ. Presentation is heterogeneous and is typically of aggressive leukemia or lymphoma, variable skin eruptions, and visceral organ involvement.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAdult T-cell leukemia/lymphomaATLL
frLeucémie/lymphome T de l'adulte= en
deAdulte T-Zell-Leukämie/Lymphom= en
esLeucemia/linfoma de células T del adulto= en
itLeucemia/linfoma dell'adulto a cellule T= en
nlVolwassen T-celleukemie/lymfoom= en
ptLeucemia ou linfoma das células T do adulto
plBiałaczka/chłoniak dorosłych z komórek T= en
csAdultní T-buněčný lymfom/leukémie= en
ukТ-клітинна лейкемія/лімфома дорослих= en
zh成人T细胞白血病/淋巴瘤= en
trYetişkin T-hücreli lösemi / lenfoma= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C91.5NTBTattributedvalidated
ICD-112A90.5Especificvalidated
MONDO0019471Evalidated
MeSHD015459Evalidated
UMLSC0023493Evalidated
MedDRA10001413Evalidated

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 (2):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 0003 / 100 000EuropeValue and classValidatedEuropean Medicines Agency 2014[OTHER]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

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

7

Sources for this card