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Background and aimsBRAF or NRAS mutations occur in approximately 60% of cutaneous melanomas, and the identification of such mutations underpins the appropriate selection of patients who may benefit from BRAF and MEK inhibitor targeted therapies. The utility of immunohistochemistry (IHC) to detect NRASQ61L mutations is currently unknown. This study sought to assess the sensitivity and specificity of...
This study evaluated the expression of PD‐L1 in immunotherapy‐naïve metastatic melanoma patients to determine longitudinal intrapatient concordance and correlate PD‐L1 status with clinicopathologic characteristics and outcome. PD‐L1 expression was assessed by immunohistochemistry in 58 patients (43 primary tumors, 96 metastases). Seventy‐two percent of patients had at least one specimen expressing...
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