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Maximizing Impact and Utility of Prognostic Gene Testing in Melanoma and Squamous Cell Carcinoma : Episode 3
Opinion
Video
Gene Expression Profiling and Other Molecular Tests Utilized for Melanoma and Squamous Cell Carcinoma
Author(s):
An expert discusses the detection of circulating tumor DNA (ctDNA) prior to surgery, noting higher detection rates in stage III patients compared with stage IIB/C patients, and its significant association with a greater number of involved lymph nodes, extracapsular extension, and clinically evident disease, while also highlighting that all 6 patients with ctDNA detected during the surveillance period developed recurrent melanoma. The expert also provides an overview of the 40-gene expression profile (GEP) test for squamous cell carcinoma (SCC) risk stratification and discusses its utility.
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- Detection of ctDNA prior to surgery was higher in stage III patients than in stage IIB/C patient and was also significantly associated with a greater number of involved lymph nodes, extracapsular extension, and clinically evident disease.
- Of the 6 patients who had ctDNA detected during the surveillance period, all developed recurrent melanoma.
- A 40-GEP test has also been developed for the stratification of SCC patient risk. Could you provide an overview and discuss the utility of the test?
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