raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:693661

Activated PI3K-delta syndrome 1

Synonyms: PASLI-CD · Senescent T-cells-lymphadenopathy-immunodeficiency syndrome due to p110delta activating mutations, type 1 · APDS type 1 · APDS1 · Activated p110delta syndrome, type 1 · Activated phosphoinositide 3-kinase delta syndrome-1

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

Orphadata ships no English definition for this code.

1

Names in Orphadata languages

9 of 12 languages
LangNameSynonyms
enActivated PI3K-delta syndrome 1PASLI-CD · Senescent T-cells-lymphadenopathy-immunodeficiency syndrome due to p110delta activating mutations, type 1 · APDS type 1 · APDS1 · Activated p110delta syndrome, type 1 · Activated phosphoinositide 3-kinase delta syndrome-1
frSyndrome de PI3K-delta activée 1APDS type 1 · APDS1 · Syndrome de déficit immunitaire-lymphadénopathie et cellules T sénéscentes dus à des mutations activatrices de p110delta type 1
deAktivierte PIK3-Delta-Syndrom 1APDS Typ 1 · APDS1 · Aktivierte Phosphoinositid-3-Kinase-delta-Syndrom Typ 1 · PASLI-CD · Seneszente T-Zellen-Lymphadenopathie-Immundefektsyndrom durch p110delta-aktivierende Mutationen vom Typ 1
esSíndrome de PIK3-delta activada 1APDS tipo 1 · APDS1 · PASLI-CD · Síndrome de células T senescentes-linfadenopatía-inmunodeficiencia por mutaciones activadoras en p110delta, tipo 1 · Síndrome de fosfoinosítido 3-quinasa delta activada 1 · Síndrome de p110delta activada tipo 1
itActivated PIK3-delta syndrome 1
nlGeactiveerd PIK3-delta-syndroom 1APDS type 1 · APDS1 · Geactiveerd fosfoinositide 3-kinase delta-syndroom type 1 · Geactiveerd p110delta-syndroom, type 1 · PASLI-CD · Senescente T-cellen - lymfadenopathie - immuundeficiëntie-syndroom door p110delta-activerende mutaties, type 1
ptSíndrome PI3K-delta activada 1APDS tipo 1 · APDS1 · PASLI-CD · Síndrome de células T senescentes-linfadenopatia-imunodeficiência devida a mutações ativadoras de p110delta, tipo 1 · Síndrome de fosfoinositídeo 3-quinase delta ativada 1 · Síndrome p110delta activada, tipo 1
plZespół aktywacji PI3K-delta typu 1= en
csActivated PI3K-delta syndrome 1= en
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM615513Evalidated
ICD-10D81.8NTBTattributedvalidated
ICD-114A01.0YNTBTattributedvalidated

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
PIK3CDDisease-causing germline mutation(s) (gain of function) inAssessedHGNC:8977ENSG000001716086028391p36.22phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit delta24136356[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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

22 annotations · validated 2025-03-20
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002205Recurrent respiratory infections
Frequent (79-30%)
HP:0002960Autoimmunity
HP:0002110Bronchiectasis
HP:0010976Decreased total B cell count
HP:0002240Hepatomegaly
HP:0011956Intestinal lymphoid nodular hyperplasia
HP:0002716Lymphadenopathy
HP:0001744Splenomegaly
Occasional (29-5%)
HP:0032204Chronic active Epstein-Barr virus infection
HP:0000509Conjunctivitis
HP:0000620Dacryocystitis
HP:0002014Diarrhea
HP:0001263Global developmental delay
HP:0002024Malabsorption
HP:0032163Molluscum contagiosum
HP:0032247Persistent CMV viremia
HP:0020114Persistent human papillomavirus infection
HP:0005401Recurrent candida infections
HP:0011110Recurrent tonsillitis
HP:0004322Short stature
HP:0200043Verrucae
Very rare (<4-1%)
HP:0031699Disseminated cryptosporidium infection

Run the differential on the 1 obligate / very frequent terms

Annotation source: 34422726[PMID]_34249806[PMID]_27555459[PMID]

7

Sources for this card