We report the case of a 53-year-old Caucasian woman who developed nodal melanoma metastasis under infliximab therapy 2 years after the removal of a nevoid melanoma, which was initially misdiagnosed as a benign compound nevus. This case illustrates the potential link between tumor necrosis factor (TNF)-α inhibition and the reactivation of latent melanoma. Furthermore, this case highlights the need for a complete skin examination before using anti-TNF-α therapy to rule out atypical malignant lesions or melanomas that can easily be missed because of presentations such as nevoid melanoma.
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http://dx.doi.org/10.1159/000355670 | DOI Listing |
Cancers (Basel)
December 2024
Soft-Tissue, Peritoneum and Melanoma Surgical Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padua, Italy.
Diagnosis of nevoid melanoma (NeM) is often difficult because NeM closely resembles a common nevus clinically and histologically. A retrospective study was conducted on 110 patients diagnosed with and/or treated for primary nevoid melanoma at the Veneto Institute of Oncology and at the University Hospital of Padua from August 1999. Mean Breslow thickness was of 1.
View Article and Find Full Text PDFMelanoma Res
December 2024
Department of Medicine, School of Medicine, University of Utah.
Acquired generalized lipodystrophy (AGL) is a rare complication of immune checkpoint inhibitors (ICIs) and is associated with immune-mediated loss of adipose tissue, peripheral resistance to insulin, and serious metabolic complications. Here we report a new case of ICI-induced AGL and provide an updated literature review of published cases. We report a 39-year-old female patient treated with adjuvant pembrolizumab for stage IIIC nevoid melanoma with ICI-induced AGL.
View Article and Find Full Text PDFPathology
February 2025
Department of Pathology, Hospital Clínico Universitario, INCLIVA Biomedical Research Institute, Valencia, Spain; Department of Pathology, University of Valencia Avenida Blasco Ibáñez, Spain. Electronic address:
Large nested melanomas (LNMs) are a rare subtype of naevoid melanoma consisting of large junctional melanocytic nests that are more common in older individuals and/or associated with sun damage. However, the presence of large melanocytic nests alone does not lead to a diagnosis of malignancy, as they can also be found in melanocytic naevi. LNMs are challenging because they lack most classic histological features of malignancy and require thorough clinicopathological evaluation.
View Article and Find Full Text PDFJ Surg Oncol
October 2024
Department of Surgical Oncology, Corewell Health, Grand Rapids, Michigan, USA.
Melanoma affects over one million people in the United States. This review explores genetic mutations and markers of all seven subtypes. Current treatment options and prognosis of each subtype are also discussed.
View Article and Find Full Text PDFAm J Dermatopathol
December 2024
Kossard Dermatopathologists, Laverty Pathology, Macquarie Park, NSW, Australia .
Background: In contrast to early-onset dysplastic nevi, late-onset atypical nevi of the elderly are more often precursors to distinctive nevoid melanomas. PReferentially expressed Antigen in MElanoma (PRAME) immunohistochemistry was applied to delineate the nevoid aspect of late-onset oncogenic nevoid pathway. Inducible Skin-Associated Lymphoid Tissue, regulatory T-cell mesenchymal hubs, has emerged as a translational tool and was used to define nevoid oncogenesis within a dynamic meta-analytic pathway.
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