Pembrolizumab-induced sarcoid granulomatous panniculitis and bullous pemphigoid in a single patient.

Pembrolizumab is an immune checkpoint inhibitor with antitumor activity in other organ malignancies. We present this case -demonstrating multiple inflammatory adverse events associated with Pembrolizumab (in a single patient), in order to increase awareness and facilitate earlier identification of the wide-ranging cutaneous side effects associated with immunotherapy.