raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:397596

Activated PI3K-delta syndrome

Synonyms: APDS · Activated p110-delta syndrome · PASLI · PI3K delta activating mutations causing senescent T cells, lymphadenopathy and immunodeficiency · Senescent T-cells-lymphadenopathy-immunodeficiency syndrome due to p110delta-activating mutation

Type
Clinical group
Group
Group of disorders
Inheritance
Autosomal dominant
Age of onset
Adult, Childhood, Infancy
Status
active

A rare, genetic, primary immunodeficiency disease characterized by increased susceptibility to recurrent and/or severe bacterial and viral infections (in particular, sinopulmonary bacterial and herpesvirus infections), chronic benign lymphoproliferation (manifesting as lymphadenopathy, hepatosplenomegaly and focal nodular lymphoid hyperplasia), and/or autoimmune disease (including immune cytopenias, juvenile arthritis, glomerulonephritis and sclerosing cholangitis). Immunophenotypically, variable degrees of agammaglobulinemia with increased IgM levels, increased circulating transitional B cells, decreased naïve CD4 and CD8 T-cells with increased CD8 effector/memory T cells are observed.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enActivated PI3K-delta syndromeAPDS · Activated p110-delta syndrome · PASLI · PI3K delta activating mutations causing senescent T cells, lymphadenopathy and immunodeficiency · Senescent T-cells-lymphadenopathy-immunodeficiency syndrome due to p110delta-activating mutation
frSyndrome de PI3K-delta activéeAPDS · Syndrome de déficit immunitaire-lymphadénopathie et cellules T sénescentes dus à des mutations activatrices de p110delta · Syndrome de p110-delta activé
deAktivierendes PIK3-delta-SyndromAPDS · Aktivierendes p110-Delta-Syndrom · PASLI · Seneszierende T-Zellen, Lymphadenopathie und Immundefizienz durch p110delta-aktivierende Mutationen
esSíndrome de PI3K-delta activadoAPDS · PASLI · Síndrome de células-T senescentes-linfadenopatía-inmunodeficiencia por una mutación activadora de PI3K delta · Síndrome de células-T senescentes-linfadenopatía-inmunodeficiencia por una mutación activadora de p110delta · Síndrome de p110-delta activado
itSindrome da attivazione di PI3K-deltaAPDS · Immunodeficienza, linfadenopatia e cellule T senescenti dovuti da mutazioni attivanti di p110delta · Sindrome da p110-delta attivata · PASLI · Mutazioni attivanti di PI3K delta associate a cellule T senescenti, linfadenopatia e immunodeficienza
nlGeactiveerd PI3K-delta-syndroomAPDS · Geactiveerd p110-delta-syndroom · PASLI · PI3K-delta-activerende mutaties die senescente T-cellen, lymfadenopathie en immuundeficiëntie veroorzaken · Senescente T-cellen - lymfadenopathie - immuundeficiëntie-syndroom door p110delta-activerende mutatie
ptSíndrome de activação PIK3 - delta
plZespół aktywacji PIK3-deltaAPDS · Zespół starzejących się komórek T, limfadenopatii i niedoboru odporności spowodowany mutacją aktywności p110delta
csSyndrom aktivované PI3K-deltaAPDS · Syndrom zahrnující stárnoucí T-buňky, lymfadenopatii a imunodeficienci, způsobený mutací aktivovanou p110delta
ukСиндром активованої PI3K-дельтаAPDS · Синдром старіння Т-лімфоцитів-лімфаденопатії-імунодефіциту, зумовлений мутацією, що активує p110delta
zh激活PI3K-δ综合征P110δ激活突变所致衰老T细胞-淋巴结病-免疫缺陷综合征
trAktif PI3K-delta sendromuAPDS · P110delta'yı aktive eden mutasyona bağlı yaşlanmış T-hücreleri-lenfadenopati-immün yetmezlik sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM615513BTNTvalidated
OMIM616005BTNTvalidated
ICD-10D81.8NTBTattributedvalidated
MONDO0018338Evalidated
MONDO18338Evalidated
MeSHC585640Evalidated
UMLSC3714976Evalidated
GARD11983Evalidated
MedDRA10078281Evalidated

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):

Children (2):

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families250 casesWorldwideCase(s)Validated34052541[PMID]
Point prevalenceUnknown—WorldwideClass onlyValidated34052541[PMID]_31111319[PMID]_ORPHANET

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

24 annotations · validated 2023-01-05
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002090Pneumonia
HP:0200117Recurrent upper and lower respiratory tract infections
Frequent (79-30%)
HP:0002960Autoimmunity
HP:0002110Bronchiectasis
HP:0011109Chronic sinusitis
HP:0004313Decreased circulating antibody level
HP:0010976Decreased total B cell count
HP:0002240Hepatomegaly
HP:0003496Increased circulating IgM level
HP:0011956Intestinal lymphoid nodular hyperplasia
HP:0002716Lymphadenopathy
HP:0000403Recurrent otitis media
HP:0001744Splenomegaly
Occasional (29-5%)
HP:0002242Abnormal intestine morphology
HP:0001369Arthritis
HP:0001508Failure to thrive
HP:0000365Hearing impairment
HP:0002665Lymphoma
HP:0000252Microcephaly
HP:0012758Neurodevelopmental delay
HP:0011110Recurrent tonsillitis
HP:0031693Severe Epstein Barr virus infection
HP:0031692Severe cytomegalovirus infection
HP:0032170Severe varicella zoster infection

Run the differential on the 2 obligate / very frequent terms

Annotation source: 27555459[PMID]_27116393[PMID]

7

Sources for this card