raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:99842

Leukocyte adhesion deficiency type I

Synonyms: LAD-I

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal recessive
Age of onset
Childhood, Infancy
Status
active

A form of leukocyte adhesion deficiency (LAD) characterized by life-threatening, recurrent bacterial infections, neutrophilia, and delayed detachment of the umbilical cord.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enLeukocyte adhesion deficiency type ILAD-I
frDéficit d'adhésion leucocytaire type IDAL-I · Déficit d'adhérence des leucocytes type I · Déficit d'adhérence leucocytaire type I · Déficit d'adhésion des leucocytes type I · LAD-I
deLeukozytenadhäsionsdefekt Typ I= en
esDeficiencia de adhesión leucocitaria tipo I= en
itDeficit di adesione leucocitaria, tipo I= en
nlDeficiëntie van leukocytenadhesie type ILAD-I · Leukocytenadhesiedeficiëntie type I
ptDeficiência de adesão leucocitária tipo I
plNiedobór adhezji leukocytów typu I= en
csDeficit adheze leukocytů, typ I= en
ukДефіцит адгезії лейкоцитів, тип ILAD-І
zh白细胞粘附缺陷1型= en
trLökosit adezyon eksikliği tip I= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM116920Evalidated
ICD-10D84.8NTBTattributedvalidated
ICD-114A00.0YNTBTindexvalidated
MONDO0007293Evalidated
MeSHC535887Evalidated
UMLSC0398738Evalidated
GARD6893Evalidated
MedDRA10090483Evalidated

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):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ITGB2Disease-causing germline mutation(s) inAssessedHGNC:6155ENSG0000016025560006521q22.3integrin subunit beta 2
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 1 000 0000.1 / 100 000EuropeValue and classValidated[EXPERT]

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