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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Case 5: Erythematous plaques with thick silvery scales on the surface distributed on the elbows before and after topical treatment in a patient treated with nivolumab for metastatic melanoma.