The iso-oncotopic response: immunotherapy-associated bullous pemphigoid in tumour footprints.

Ross Pearlman, Hannah Badon, Andrew Whittington, Robert T Brodell, Kimberley H M Ward

Clinical and experimental dermatology 2022 Jul

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This case report describes a unique distribution of bullous pemphigoid induced by cemiplimab therapy. The patient preferentially developed bullae in the scar "footprints" of previous non-melanoma skin cancers, yet traumatic scars were spared. We propose to describe this distribution as an 'iso-oncotopic response'. © 2022 British Association of Dermatologists.

Citation

Ross Pearlman, Hannah Badon, Andrew Whittington, Robert T Brodell, Kimberley H M Ward. The iso-oncotopic response: immunotherapy-associated bullous pemphigoid in tumour footprints. Clinical and experimental dermatology. 2022 Jul;47(7):1379-1381