Locus‐specific concordance of genomic alterations between tissue and plasma circulating tumor DNA in metastatic melanoma

Circulating tumor DNA (ct DNA ) may serve as a surrogate to tissue biopsy for noninvasive identification of mutations across multiple genetic loci and for disease monitoring in melanoma. In this study, we compared the mutation profiles of tumor biopsies and plasma ct DNA from metastatic melanoma patients using custom sequencing panels targeting 30 melanoma‐associated genes. Somatic mutations were identified in 20 of 24 melanoma biopsies, and 16...