RESUMEN
Psoriasis is a common chronic skin disease mainly located in areas of friction. Psoriasis of the lips as an exclusive presentation is rare and often misdiagnosed. Different anti-psoriatic therapies have been proposed, but the literature is limited to case studies with partial results. Biologic therapies have revolutionized the management of many dermatologic conditions, including psoriasis, and they are approved for pediatric use. We report the case of a 14-year-old boy with a 2-year history of white-yellowish scaling lesions on his lips, without intraoral involvement. Lip biopsy showed a psoriasiform pattern. Treatment with adalimumab 40 mg every other week was started, and after 6 months of therapy, we obtained a complete remission of the patient's lip psoriasis.