raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:231226

Unstable beta globin chain variant disease

Synonyms: Autosomal dominant beta-thalassemia · Inclusion body beta-thalassemia

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Childhood
Status
active

Dominant beta-thalassemia is a form of beta-thalassemia resulting in moderate to severe anemia.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enUnstable beta globin chain variant diseaseAutosomal dominant beta-thalassemia · Inclusion body beta-thalassemia
frAnémie par hémoglobine instable due à la chaîne beta globineBêta-thalassémie autosomique dominante · Bêta-thalassémie à corps d'inclusion · Thalassémie bêta dominante · Thalassémie bêta à corps d'inclusion
deInstabile Beta-Globinketten-VarianteBeta-Thalassämie mit Einschlusskörpern · Beta-Thalassämie, autosomal-dominante
esEnfermedad por inestabilidad de la variante de la cadena beta-globina inestableBeta-talasemia autosómica dominante · Beta-talasemia con cuerpos de inclusión
itMalattia da variante instabile della catena della beta-globinaBeta talassemia autosomica dominante · Beta talassemia con corpi di inclusione
nlAandoening door onstabiele variant van bèta-globineketenBèta-thalassemie met inclusielichaampjes · 'Inclusion body'-bètathalassemie · Autosomaal dominante bèta-thalassemie
ptDoença da variante instável da cadeia beta da globinaBeta-talassemia beta autossómica dominante · Beta-talassémia de corpos de inclusão
plChoroba z niestabilnym wariantem łańcucha beta-globinyBeta-talasemia z ciałkami wtrętowymi
csDominantní beta-talasémie= en
ukДомінантна бета-таласеміяБета-таласемія з інклюзивними тілами
zh显性β-地中海贫血包涵体β-地中海贫血
trDominant beta-talasemiİnklüzyon cisimcikli beta-talasemi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM603902Evalidated
ICD-10D56.1NTBTattributedvalidated
ICD-113A50.2NTBTindexvalidated
MONDO0011381Evalidated
MeSHC565834Evalidated
UMLSC1858990Evalidated

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.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
HBBDisease-causing germline mutation(s) inAssessedHGNC:4827ENSG0000024473414190011p15.4hemoglobin subunit beta21886666[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

49 annotations · validated 2020-09-28
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0011904Persistence of hemoglobin F
HP:0011905Reduced hemoglobin A
Frequent (79-30%)
HP:0011273Anisocytosis
HP:0025547Decreased mean corpuscular hemoglobin concentration
HP:0025066Decreased mean corpuscular volume
HP:0001978Extramedullary hematopoiesis
HP:0001971Hypersplenism
HP:0004840Hypochromic microcytic anemia
HP:0000980Pallor
Occasional (29-5%)
HP:0011031Abnormality of iron homeostasis
HP:0011842Abnormality of skeletal morphology
HP:0000164Abnormality of the dentition
HP:0002829Arthralgia
HP:0006487Bowing of the long bones
HP:0200123Chronic hepatitis
HP:0031035Chronic infection
HP:0001394Cirrhosis
HP:0000823Delayed puberty
HP:0000819Diabetes mellitus
HP:0002014Diarrhea
HP:0002094Dyspnea
HP:0001531Failure to thrive in infancy
HP:0011968Feeding difficulties
HP:0002857Genu valgum
HP:0001510Growth delay
HP:0001395Hepatic fibrosis
HP:0001433Hepatosplenomegaly
HP:0000953Hyperpigmentation of the skin
HP:0000829Hypoparathyroidism
HP:0040075Hypopituitarism
HP:0009004Hypoplasia of the musculature
HP:0000821Hypothyroidism
HP:0000737Irritability
HP:0000952Jaundice
HP:0000939Osteoporosis
HP:0001954Recurrent fever
HP:0200042Skin ulcer
HP:0001744Splenomegaly
HP:0004936Venous thrombosis
Very rare (<4-1%)
HP:0000846Adrenal insufficiency
HP:0011675Arrhythmia
HP:0005280Depressed nasal bridge
HP:0001644Dilated cardiomyopathy
HP:0002007Frontal bossing
HP:0001402Hepatocellular carcinoma
HP:0001722High-output congestive heart failure
HP:0430028Hyperplasia of the maxilla
HP:0010620Malar prominence
HP:0000582Upslanted palpebral fissure

Run the differential on the 2 obligate / very frequent terms

Annotation source: 20492708[PMID]_20301599[PMID]_27811859[PMID]

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Sources for this card