Partial expression of Papillon-Lefèvre Syndrome

Area of Science:

• Genetics and rare diseases
• Dermatology and oral medicine
• Immunology

Background:

• Papillon-Lefèvre Syndrome (PLS) is a rare autosomal recessive disorder.
• Characterized by palmar plantar keratosis and severe, early-onset periodontitis.
• PLS affects approximately 1-4 per million individuals.

Observation:

• A 35-year-old patient presented with typical PLS symptoms, excluding premature tooth loss.
• Clinical examination revealed palmar plantar keratosis and a single periodontal pocket.
• Microbiological analysis found no anaerobic bacteria in plaque samples.

Findings:

• Neutrophil function tests showed impaired chemotaxis and phagocytosis.
• Intracellular killing and respiratory burst functions in neutrophils were within normal limits.
• This presentation deviates from the classic severe periodontitis associated with PLS.

Implications:

• Suggests a potential variant of Papillon-Lefèvre Syndrome with atypical periodontal involvement.
• Highlights the importance of leukocyte function testing in diagnosing and understanding PLS.
• Further research may elucidate the specific genetic or immunological factors underlying this presentation.