raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:300359

PLCG2-associated antibody deficiency and immune dysregulation

Synonyms: FACU · Familial atypical cold urticaria · Familial cold urticaria with common variable immunodeficiency · PLAID

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

A rare, hereditary, immune deficiency with skin involvement characterized by early-onset cold urticaria after generalized exposure to cold air or evaporative cooling and not after contact with cold objects. Additional immunologic abnormalities are often present - antibody deficiency, recurrent infections, autoimmune disease and symptomatic allergic disease.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPLCG2-associated antibody deficiency and immune dysregulationFACU · Familial atypical cold urticaria · Familial cold urticaria with common variable immunodeficiency · PLAID
frDérèglement et déficit immunitaire lié à PLCG2Urticaire familiale au froid atypique · Urticaire familiale au froid avec déficit immunitaire commun variable · FACU · PLAID
dePLCG2-associated antibody deficiency and immune dysregulationAutoinflammatorisches Syndrom, atypisches kälteinduziertes, familiäre Form · FACU · Familial atypical cold urticaria · Familial cold urticaria with common variable immunodeficiency · Familiäre Kälte-Urtikaria mit allgemeinem variablem Immundefektsyndrom · Familiäre atypische Kälte-Urtikaria · PLAID
esDeficiencia de anticuerpos asociada a PLCG2 y desregulación inmunológicaFACU · PLAID · Urticaria familiar por frío atípica · Urticaria familiar por frío con inmunodeficiencia común variable
itDeficit di anticorpi correlato a PLCG2 e disregolazione immunitariaDeficit degli anticorpi PLCG2-correlati e disregolazione immunitaria · FACU · Orticaria atipica familiare da freddo · Orticaria familiare da freddo con immunodeficienza comune variabile · PLAID
nlPLCG2-geassocieerde antilichaamdeficiëntie en immuundisregulatieFACU · Familiale atypische koude auto-inflammatoir syndroom · Familiale atypische koude-urticaria · Familiale atypische netelroos door koude · Familiale koude-urticaria met algemene variabele immuundeficiëntie · Familiale koudenetelroos met algemene variabele immuundeficiëntie · PLAID
ptDeficiência de anticorpos PLCG2-associada e imunodesregulaçãoUrticária familiar ao frio atípica
plNiedobór przeciwciał i zaburzenia odporności związane z plCG2FACU · plAID · Rodzinna atypowa pokrzywka z zimna · Rodzinna pokrzywka z zimna z powszechnym zmiennym niedoborem odporności
csFamiliární chladová kopřivka s běžnou variabilní imunodeficiencíFACU · Nedostatek protilátek a imunitní dysregulace asociované s PLCG2 · PLAID · Familiární atypická chladová kopřivka
ukPLCG2-асоційований дефіцит антитіл та імунна дисрегуляціяFACU · Сімейна атипова холодова кропивянка · Сімейна холодова кропивянка при загальному варіабельному імунодефіциті · PLAID
zhPLCG2相关抗体缺陷与免疫失调家族性冷型荨麻疹伴普通变异型免疫缺陷
trPLCG2-ilişkili antikor eksikliği ve immün düzensizlikFACU · PLAID · Ailesel atipik soğuk ürtiker · Yaygın değişken immün yetmezliği olan ailesel soğuk ürtiker

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM614468Evalidated
ICD-10L50.2NTBTattributedvalidated
ICD-114A60.YNTBTattributedvalidated
MONDO0013766Evalidated
UMLSC4722480Evalidated

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 (5):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PLCG2Disease-causing germline mutation(s) (gain of function) inAssessedHGNC:9066ENSG0000019794360022016q24.1phospholipase C gamma 222236196[PMID]_23000145[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families3 familiesWorldwideFamily(ies)Validated22236196[PMID]
Point prevalence<1 / 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

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card