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Κυριακή 4 Μαρτίου 2018

A case report of atypical Spitz tumor harboring a novel MLPH-ALK gene fusion with discordant ALK immunohistochemistry results

Frequent kinase fusions have been reported in spitzoid neoplasms, approximately 10% of which involve ALK rearrangements. Herein, we report a case of atypical Spitz tumour (AST) with a novel MLPH-ALK fusion, which has not been previously reported to contribute to cancer development. The tumour was detected in the right arm of a 40-year-old woman. The novel ALK fusion was identified by a 5′-rapid amplification of cDNA ends-based system optimised for formalin-fixed paraffin-embedded tissue. Initially, ALK expression was detected by immunohistochemistry (IHC) using 5A4 antibodies for both sensitive and conventional polymer detection method.

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