Unusual presentation of pediatric lichen planus with cutaneous, oral, and nail involvement: a case report.
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INTRODUCTION: Lichen planus (LP) is a chronic, immune-mediated mucocutaneous disorder with rare oral involvement in pediatric patients. Oral lichen planus (OLP), a recognized oral potentially malignant disorder, poses diagnostic and therapeutic challenges in children due to its rarity. CASE PRESENTATION: A 16-year-old male presented with a 1-year history of burning sensation in the oral cavity, aggravated by spicy food. Intraoral examination revealed bilateral greyish-white reticular plaques with peripheral striae on the buccal mucosa and tongue. Violaceous papules on extremities and toenail trachyonychia were noted. Histopathology was consistent with OLP. The patient was treated with triamcinolone. DISCUSSION: Reported pediatric LP cases show varied lesion patterns and age inclusion resulting in underestimation of the actual burden of the condition. Nail involvement, which is particularly rare, was noted in the present case. CONCLUSION: This case highlights the need for age standardization, early recognition, and long-term follow-up of pediatric LP to prevent potential complications.