raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:231393

Beta-thalassemia-X-linked thrombocytopenia syndrome

Synonyms: XLTT

Type
Disease
Group
Disorder
Inheritance
X-linked recessive
Age of onset
No data available
Status
active

Beta-thalassemia - X-linked thrombocytopenia is a form of beta-thalassemia characterized by splenomegaly and petechiae, moderate thrombocytopenia, prolonged bleeding time due to platelet dysfunction, reticulocytosis and mild beta-thalassemia.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enBeta-thalassemia-X-linked thrombocytopenia syndromeXLTT
frBêta-thalassémie-thrombocytopénie liée à l'XThalassémie bêta-thrombocytopénie liée à l'X · XLTT
deBeta-Thalassämie-X-chromosomale Thrombozytopenie-Syndrom= en
esSíndrome de beta-talasemia-trombocitopenia ligada al cromosoma X= en
itBeta talassemia - trombocitopenia legata all'X= en
nlBèta-thalassemie - X-gebonden trombocytopenie-syndroom= en
ptTalassemia beta - trombocitopenia ligada ao X
plBeta-talasemia - trombocytopenia sprzężona z chromosomem X= en
csSyndrom zahrnující beta-talasémii a X-vázanou trombocytopenii= en
ukСиндром бета-таласемії - Х-зчепленої тромбоцитопенії= en
zhβ-地中海贫血-X连锁血小板减少综合征X连锁血小板减少综合征
trBeta-talasemi-X'e bağlı trombositopeni sendromu= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM314050Evalidated
ICD-10D69.4NTBTattributedvalidated
ICD-113A50.2NTBTindexvalidated
MONDO0010745Evalidated
MeSHC564050Evalidated
UMLSC1839161Evalidated

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
GATA1Disease-causing germline mutation(s) inAssessedHGNC:4170ENSG00000102145305371Xp11.23GATA binding protein 120301538[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

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

6 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001892Abnormal bleeding
HP:0011902Abnormal hemoglobin
HP:0011869Abnormal platelet function
HP:0001903Anemia
HP:0001744Splenomegaly
HP:0001873Thrombocytopenia

Run the differential on the 6 obligate / very frequent terms

7

Sources for this card