raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:436159

Autoimmune lymphoproliferative syndrome due to CTLA4 haploinsuffiency

Synonyms: ALPS due to CTLA4 haploinsuffiency · CHAI · CTLA-4 haploinsufficiency with autoimmune infiltration disease

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

A rare, primary immunodeficiency characterized by variable combination of enteropathy, hypogammaglobulinemia, recurrent respiratory infections, granulomatous lymphocytic interstitial lung disease, lymphocytic infiltration of non-lymphoid organs (intestine, lung, brain, bone marrow, kidney), autoimmune thrombocytopenia or neutropenia, autoimmune hemolytic anemia and lymphadenopathy.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutoimmune lymphoproliferative syndrome due to CTLA4 haploinsuffiencyALPS due to CTLA4 haploinsuffiency · CHAI · CTLA-4 haploinsufficiency with autoimmune infiltration disease
frSyndrome lymphoprolifératif auto-immun dû à une haploinsuffisance de CTLA-4ALPS dû à une haploinsuffisance de CTLA-4 · CHAI · SLAI dû à une haploinsuffisance de CTLA-4
deAutoimmun-lymphoproliferatives Syndrom durch CTLA4-HaploinsuffizienzALPS durch CTLA4-Haploinsuffizienz · CHAI · CTLA4-Haploinsuffizienz mit Störung der autoimmunen Infiltration
esSíndrome linfoproliferativo autoinmune por haploinsuficiencia de CTLA4ALPS por una haploinsuficiencia CTLA4 · CHAI · Haploinsuficiencia CTLA-4 con enfermedad de infiltración autoinmune
itSindrome linfoproliferativa autoimmune da aploinsufficienza di CTLA4ALPS da aploinsufficienza di CTLA4 · ALPS, tipo 5 · ALPS, tipo V · Aploinsufficienza di CTLA-4 con malatttia infiltrativa autoimmune · CHAI · Sindrome linfoproliferativa autoimmune, tipo 5 · Sindrome linfoproliferativa autoimmune, tipo V
nlAuto-immuun lymfoproliferatief syndroom door CTLA4-haploinsufficiëntieALPS door CTLA4-haploinsufficiëntie · CHAI · CTLA4-haploinsufficiëntie met auto-immune infiltratieziekte
ptSíndrome linfoproliferativo autoimune por haploinsuficiência CTLA4
plAutoimmunizacyjny zespół limfoproliferacyjny spowodowany haploinsuficjencją CTLA4ALPS spowodowany haploinsuficjencją CTLA4 · ALPS typu 5 · ALPS typu V · Autoimmunizacyjny zespół limfoproliferacyjny typu 5 · Autoimmunizacyjny zespół limfoproliferacyjny typu V · CHAI · Haploinsuficjencja CTLA-4 z autoimmunologiczną chorobą naciekową
csAutoimunitní lymfoproliferativní syndrom způsobený CTLA4 haploinsuficiencíALPS, typ 5 · ALPS, typ V · Autoimunitní lymfoproliferativní syndrom, typ 5 · CHAI · ALPS způsobený CTLA4 haploinsuficiencí · CTLA-4 haploinsuficience s autoimunitním infiltračním onemocněním
ukАутоімунний лімфопроліферативний синдром, зумовлений гаплонедостатністю CTLA4ALPS внаслідок гаплонедостатності CTLA4 · CHAI · CTLA-4 гаплонедостатність з аутоімунною інфільтративною хворобою
zhCTLA4单倍剂量不足所致自身免疫性淋巴增生综合征CTLA-4单倍体剂量不足合并自身免疫性浸润性疾病
trCTLA4 haployetmezliğe bağlı otoimmün lenfoproliferatif sendromCHAI · CTLA4 haplo yetersizliğine bağlı ALPS · Otoimmün infiltrasyon hastalığı ile seyreden CTLA-4 haployetmezliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM616100Evalidated
ICD-10D84.8NTBTattributedvalidated
ICD-114A01.21NTBTindexvalidated
MONDO0014493Evalidated
UMLSC4015214Evalidated
GARD12316Evalidated

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 (4):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CTLA4Disease-causing germline mutation(s) inAssessedHGNC:2505ENSG000001635991238902q33.2cytotoxic T-lymphocyte associated protein 425213377[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families17 casesWorldwideCase(s)Validated25213377[PMID]_25329329[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_25213377[PMID]_25329329[PMID]

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

31 annotations · validated 2022-12-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0004313Decreased circulating antibody level
Frequent (79-30%)
HP:0001047Atopic dermatitis
HP:0001890Autoimmune hemolytic anemia
HP:0001973Autoimmune thrombocytopenia
HP:0002720Decreased circulating IgA level
HP:0004315Decreased circulating IgG level
HP:0002850Decreased circulating total IgM
HP:0002014Diarrhea
HP:0002240Hepatomegaly
HP:0002716Lymphadenopathy
HP:0002090Pneumonia
HP:0002783Recurrent lower respiratory tract infections
HP:0002788Recurrent upper respiratory tract infections
HP:0001744Splenomegaly
Occasional (29-5%)
HP:0002582Atrophic gastritis
HP:0002110Bronchiectasis
HP:0100280Crohn's disease
HP:0000964Eczematoid dermatitis
HP:0001510Growth delay
HP:0002037Inflammation of the large intestine
HP:0032216Lymphocytic infiltration of the colorectal mucosa
HP:0002665Lymphoma
HP:0001904Neutropenia in presence of anti-neutropil antibodies
HP:0003765Psoriasiform dermatitis
HP:0005401Recurrent candida infections
HP:0100806Sepsis
HP:0100646Thyroiditis
HP:0100651Type I diabetes mellitus
Very rare (<4-1%)
HP:0002069Bilateral tonic-clonic seizure
HP:0100653Optic neuritis
HP:0012410Pure red cell aplasia

Run the differential on the 1 obligate / very frequent terms

Annotation source: 35154081[PMID]_29729943[PMID]

7

Sources for this card