Leukocyte adhesion deficiency

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Leukocyte adhesion deficiency

ORPHA:2968Disease

Also called LAD

What it is

A rare primary immunodeficiency characterized by defects in the leukocyte adhesion process, marked leukocytosis, recurrent infections, and delayed detachment of the umbilical cord.

Key facts

Prevalence
<1 / 1 000 000 (Latin America)
Age of onset
Childhood, Infancy
Inheritance
Autosomal recessive
Classified as
Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

Genes reported in subtypes

FERMT3ITGB2SLC35C1

Orphanet records these genes on 3 more specific entries under this disorder, not on this entry itself:

A well-studied disease is usually split into subtypes, and the gene is curated on whichever one the evidence belongs to. Open a subtype to see which gene goes with it.

ICD-10 codes

D84.8filed under a broader ICD-10 category — shared with 39 other rare diseases

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Cross-references

MESH D018370MONDO 0017570OMIM 116920OMIM 266265OMIM 612840UMLS C5550999

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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