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Biography

Lieuko Nguyen completed her pediatric nephrology training at Stanford University in Palo, Alto, California and is currently a Paediatric Academic Multi-Organ Transplant Clinical Fellow at the Hospital for Sick Children in Toronto.

Abstract

The challenge of immunosuppression in pediatric renal transplantation is to balance preventing rejection while avoiding infectious complications. A dermatological complication of immunosuppression is viral warts, which cause significant disfigurement and increase the risk of skin malignancy. We present three pediatric and adolescent renal allograft recipients with multiple, recalcitrant verrucae vulgares lesions and one patient with molluscum contagiosum who were switched from mycophenolate mofetil to leflunomide. Teriflunomide metabolite levels were carefully maintained between 50,000 and 100,000ng/mL to balance its immunosuppressive and antiviral properties. No adverse events requiring discontinuation of leflunomide were encountered. Switching from mycophenolate mofetil to leflunomide successfully cleared verruca vulgaris and molluscum lesions in all four renal transplant patients. The ability to minimize and even resolve warts can improve quality of life by reducing risk of skin malignancies and emotional distress in solid organ transplant patients. Leflunomide is a potential therapeutic option for post transplantation patients with skin warts because it serves both as an adjunct to the immunosuppressive regimen and an antiviral agent.

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