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Article Abstract

PRAME (PReferentially expressed Antigen in Melanoma) is a gene first identified in melanoma. It has been proposed as a useful marker to differentiate melanoma from benign melanocytic neoplasms. Recently genomic testing using fluorescence hybridization has been used to aid in the diagnosis of difficult melanocytic neoplasms. We have compared PRAME staining to FISH testing results in 83 difficult to classify melanocytic neoplasms which showed spitzoid histologic features. A relatively low sensitivity of 29.6% and high specificity of 76.8% is seen with PRAME staining as compared to genomic testing with fluorescence hybridization. This study highlights the limitations of PRAME staining in spitzoid neoplasms.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10591151PMC
http://dx.doi.org/10.3389/fmed.2023.1265827DOI Listing

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