Infraorbital crease and atopic dermatitis

Area of Science:

• Pediatrics
• Dermatology
• Clinical Epidemiology

Background:

• Atopic dermatitis (AD) is a common inflammatory skin condition in children.
• Identifying reliable clinical markers for AD diagnosis is crucial for early intervention.
• The infraorbital skin crease (also known as the Dennie-Morgan fold) has been anecdotally associated with AD.

Purpose of the Study:

• To evaluate the diagnostic utility of a prominent infraorbital skin crease as a marker for atopic dermatitis in school-aged children.
• To assess the validity and repeatability of the infraorbital crease as an indicator of AD.

Main Methods:

• A cross-sectional study involving 500 school children aged 3 to 11 years.
• Infraorbital creases were assessed by two trained observers using a standardized protocol.
• Atopic dermatitis diagnosis was confirmed by a dermatologist blinded to the crease assessment.

Main Results:

• A prominent infraorbital crease was observed in 20% of children with AD versus 35.6% of children without AD.
• The difference in crease prevalence between children with and without AD was not statistically significant (p > .05).
• Poor validity and repeatability of the infraorbital crease were noted.

Conclusions:

• The infraorbital skin crease demonstrates limited utility as a diagnostic marker for atopic dermatitis in population-based studies.
• While potentially useful in specific clinical settings, its poor performance in this study suggests caution in its application.
• Further research may be needed to explore other potential clinical signs for AD diagnosis in pediatric populations.