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Updated: Jul 10, 2025

Granulocyte-dependent Autoantibody-induced Skin Blistering
Published on: October 12, 2012
Immune checkpoint inhibitor-induced lichenoid drug eruption-sparing scar burns
Kelvin Truong1,2, Charmaine Vanessa Chamberlin1, Jennifer Kim2,3
1Department of Dermatology, Westmead Hospital, Westmead, New South Wales, Australia.
Abstract:
The authors present a striking case of a patient experiencing a lichenoid drug eruption secondary to immunotherapy, curiously sparing scarred skin from past burns. We observed vastly higher amounts of inflammatory lymphoid cells staining for PD-1; 70% in skin with a lichenoid drug reaction and 50% in scarred skin. The lack of a lichenoid reaction at sites of scarred skin may indicate that a basement membrane component may be causative for a lichenoid drug eruption.
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