Scalp trauma: a risk factor for lichen planopilaris?

Area of Science:

• Dermatology
• Pathogenesis of Alopecia

Background:

• Lichen planopilaris is a primary scarring alopecia.
• Characterized by perifollicular lymphocytic inflammation and fibrosis.
• Pathogenesis is not fully understood, but molecular mechanisms are being explored.

Observation:

• A case of lichen planopilaris following a serious head injury is presented.
• The alopecia was specifically observed in the areas affected by head trauma.

Findings:

• The case suggests a potential link between scalp trauma and lichen planopilaris development.
• The localized occurrence of lichen planopilaris in trauma sites supports this association.

Implications:

• Scalp trauma may be a contributing factor in the pathogenesis of lichen planopilaris.
• Further research is warranted to elucidate the role of trauma in scarring alopecia.