Programmed death 1 receptor (PD-1) inhibitors, such as nivolumab, are effective in the treatment of advanced and metastatic melanoma, as well as in kidney, bladder, and non-small cell lung carcinomas. Adverse events of PD-1 inhibitors result mostly from autoimmune mechanisms, include gastrointestinal inflammatory diseases, hepatotoxicity, neurotoxicity, endocrinopathies, and skin toxicities. In this article, we highlight the main cutaneous adverse events associated with PD-1 inhibitors and provide a set of practical guidelines about their management. Additionally, we report a case of nivolumab-induced bullous pemphigoid in a patient with metastatic melanoma.Programmed death 1 receptor (PD-1) inhibitors, such as nivolumab, are effective in the treatment of advanced and metastatic melanoma, as well as in kidney, bladder, and non-small cell lung carcinomas. Adverse events of PD-1 inhibitors result mostly from autoimmune mechanisms, include gastrointestinal inflammatory diseases, hepatotoxicity, neurotoxicity, endocrinopathies, and skin toxicities. In this article, we highlight the main cutaneous adverse events associated with PD-1 inhibitors and provide a set of practical guidelines about their management. Additionally, we report a case of nivolumab-induced bullous pemphigoid in a patient with metastatic melanoma
