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J Immunother Cancer. 2016 Aug 16;4:47. doi: 10.1186/s40425-016-0151-z. eCollection 2016.

Grover's-like drug eruption in a patient with metastatic melanoma under ipilimumab therapy.

Journal for immunotherapy of cancer

Viktor H Koelzer, Tobias Buser, Niels Willi, Sacha I Rothschild, Andreas Wicki, Peter Schiller, Gieri Cathomas, Alfred Zippelius, Kirsten D Mertz

Affiliations

  1. Cantonal Hospital Baselland, Institute of Pathology, Mühlemattstrasse 11, CH-4410 Liestal, Switzerland ; Translational Research Unit (TRU), Institute of Pathology, University of Bern, Murtenstrasse 31, CH-3010 Bern, Switzerland.
  2. Division of Medical Oncology, University Hospital Basel, Petersgraben 4, CH-4031 Basel, Switzerland.
  3. Cantonal Hospital Baselland, Institute of Pathology, Mühlemattstrasse 11, CH-4410 Liestal, Switzerland.
  4. Cantonal Hospital Baselland, Mühlemattstrasse 11, CH-4410 Liestal, Switzerland.

PMID: 27532022 PMCID: PMC4986338 DOI: 10.1186/s40425-016-0151-z

Abstract

BACKGROUND: Dermatologic toxicity is an important adverse effect of immune checkpoint inhibitors targeting cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) and programmed cell death 1 receptor (PD-1) or PD ligand 1 (PD-L1). Skin toxicity most commonly includes a maculopapular erythematous rash and pruritus. Rarely life threatening complications such as Steven's Johnson syndrome or toxic epidermal necrolysis may occur.

CASE PRESENTATION: Here we report the uncommon event of a drug-induced transient acantholytic dermatosis (Grover's disease) in a 73-year-old Caucasian male treated with ipilimumab for metastatic melanoma. Five weeks after initiation of therapy, the patient developed a widespread polymorphic papulovesicular dermatosis on the trunk and proximal extremities with intense pruritus. Skin biopsy showed acantholytic dyskeratosis with interface dermatitis consistent with a Grover's-like drug eruption.

CONCLUSIONS: These findings should raise awareness for uncommon immune-related dermatological toxicities of immunomodulatory antibodies targeting the CTLA-4 signaling axis. We recommend biopsies of unexpected skin lesions to rapidly identify dermatological adverse events of immune checkpoint inhibitors.

Keywords: Autoimmunity; Drug eruption; Grover’s disease; Immune checkpoint inhibitors; Immunotherapy; Ipilimumab; Melanoma; Transient acantholytic dermatosis

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