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Τρίτη 8 Ιανουαρίου 2019

Vitiligo‐like depigmentation in oncology patients treated with immunotherapies for nonmelanoma metastatic cancers

Summary

Vitiligo‐like depigmentation (VLD) is a characteristic cutaneous event described in patients with metastatic malignant melanoma receiving treatment with immune checkpoint inhibitors. We report the onset of VLD in three patients with other cancer types (cholangiocarcinoma, renal cell carcinoma and squamous cell carcinoma) following treatment with immunotherapy (combination pembrolizumab and nivolumab for the first, and pembrolizumab for the other two cancer types). Cases of VLD have not been reported previously in patients treated for any of these cancers, to our knowledge. Pembrolizumab and nivolumab are monoclonal antibodies targeting programmed cell death (PD)‐1 receptors, while ipilimumab targets cytotoxic T‐lymphocyte antigen‐4. Our clinical finding challenges the current understanding of VLD as a malignant melanoma‐specific immunotherapy‐related adverse event.



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