Recurrent bilateral cutaneous squamous cell carcinoma arising within hypertrophic lichen planus with metastasis while on cemiplimab by Melissa C. Leeolou, BS, Nareh Marukian Burgren, MD, Carolyn S. Lee, MD, PhD, Arash Momeni, MD, Harlan Pinto, MD, Peter Johannet, MD, Cara Liebert, MD, Kristin M. Nord, MD, Anne Lynn S. Chang, MD

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