Chediak-Higashi syndrome

Overview

Board takeaway: Severe early periodontal destruction with recurrent infections and partial albinism requires coordinated immunology and hematology assessment.

What causes Chediak-Higashi syndrome?

Biallelic LYST pathogenic variants disrupt lysosomal trafficking. The result is impaired immune-cell function, partial oculocutaneous albinism, and a bleeding tendency. Classic childhood disease and milder later-presenting phenotypes differ in infection severity and neurologic progression.

Which systemic findings distinguish Chediak-Higashi syndrome?

Recurrent pyogenic infections, light pigmentation, visual problems, easy bruising, and progressive neurologic impairment may occur. The accelerated phase is hemophagocytic lymphohistiocytosis, with fever, organ enlargement, cytopenias, and potentially life-threatening multiorgan disease.

What oral findings suggest Chediak-Higashi syndrome?

Early severe periodontitis may cause gingival inflammation, bleeding, attachment loss, alveolar destruction, mobility, and premature loss of primary or permanent teeth. Ulcers, gingivostomatitis, and recurrent periodontal abscesses may occur. Destruction disproportionate to local deposits warrants systemic evaluation.

How should invasive dental care be planned in Chediak-Higashi syndrome?

1. Establish current status: consult immunology and hematology about infections, transplant status, accelerated disease, and medications.
2. Assess hemostasis and immunity: obtain relevant recent blood counts and a procedure-specific bleeding plan. Platelet count alone does not capture platelet dysfunction.
3. Treat infection promptly: coordinate urgent odontogenic or periodontal infection management and antibiotic decisions with the medical team.
4. Plan local control: atraumatic technique and local hemostatic measures; any desmopressin, antifibrinolytic, or transfusion support is prescribed by hematology.
5. Prevent progression: intensive caregiver-supported hygiene, fluoride, periodontal assessment, and specialist referral when needs exceed scope.

What treatment and prognosis apply to Chediak-Higashi syndrome?

Hematopoietic stem cell transplantation can correct hematologic and immunologic dysfunction, but may not prevent progressive neurologic disease. Accelerated disease requires urgent specialist treatment. Prognosis depends on phenotype, infections, hemophagocytic disease, and treatment; historical untreated survival estimates should not be applied to every transplanted child.

Exam pearl

Sources

• Supplemental study guide: Chediak-Higashi syndrome
• AAPD: Management of Dental Patients with Special Health Care Needs (2026)
• MedlinePlus Genetics: chediak higashi syndrome
• AAPD: Antibiotic Prophylaxis for Dental Patients at Risk for Infection (2026)
• AAPD: Dental Management During Immunosuppressive Therapy and Head and Neck Radiation (2026)