A pediatric case of generalized lichen aureus

Area of Science:

• Dermatology
• Immunology

Background:

• Lichen aureus is a rare pigmented purpuric dermatosis.
• Characterized by golden/rust-colored macules or papules, typically on lower limbs.
• Usually presents with unilateral, isolated distribution; segmental distribution is rare.

Purpose of the Study:

• To report a rare case of lichen aureus with segmental distribution.
• To investigate potential triggers for lichen aureus.
• To explore the association between lichen aureus and allergic rhinitis.

Main Methods:

• Case report documentation.
• Clinical observation of skin lesions.
• Correlation with patient's allergic rhinitis history.

Main Results:

• A patient presented with lichen aureus lesions in a segmental, linear pattern on the lower limb, following venous drainage.
• The onset and exacerbation of lichen aureus coincided with the onset of allergic rhinitis.
• The case suggests a possible link between Type I hypersensitivity (allergic rhinitis) and lichen aureus.

Conclusions:

• Segmental distribution of lichen aureus, though rare, can occur.
• Allergic rhinitis may be a potential trigger or associated condition for lichen aureus.
• Further research is warranted to understand the immunopathogenesis of lichen aureus and its potential triggers.