Home HOME Neoplasma 2019 Neoplasma Vol.66, No.4, p.631-636, 2019

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Neoplasma Vol.66, No.4, p.631-636, 2019

Title: Clinical and prognostic significance of BRAF V600E mutation in non-metastatic cutaneous melanoma patients
Author: F. Tas, K. Erturk

Abstract: Because of the conflicting conclusions on BRAF mutations in the natural course of non-metastatic melanoma, their prognostic significance is still controversial. The present study aims to assess the prevalence and prognostic significance of BRAF V600E mutation and apprehend its association with clinicopathological features in stage I to III Turkish melanoma patients. A total of 93 adult stages I to III cutaneous primary melanoma patients were included in the study. BRAF V600E mutation was detected using the Real Time PCR. Median age was 52 years (range, 18 to 84) and 68.8% of the patients were males. Overall, BRAF V600E mutation was detected in 46.2% (43/93) of the patients. In stages I and II, trunk was the most frequently affected localization (47.1%) (p=0.05) and regression was found more prevalent in BRAF-mutant patients (38.5%) (p=0.05). Furthermore, males were predominant among stage III BRAF-mutant patients (80.8%) (p=0.05), and both superficially spreading histology subtype (45.0%) (p=0.05) and lower mitotic rate (36.4%) (p=0.02) were also more commonly associated with stage III BRAF-mutant patients. A significantly favorable relapse free survival was found in stage III node-positive BRAF-mutant patients (p=0.02), on the other hand BRAF status was not found to be associated with relapse free survival in stage I and stage II patients (p=0.3). Moreover, there was no overall survival association between stages and BRAF status (p=0.1 for stage I–II and p=0.2 for stage III). In conclusion, there is no prognostic value of BRAF V600E mutation on overall survival in stage I–III melanoma patients, yet its presence might indicate a decreased risk for development of relapse and/or metastasis in stage III melanoma patients.

Keywords: melanoma, BRAF V600E, mutation, prognostic
Published online: 29-Jul-2019
Year: 2019, Volume: 66, Issue: 4 Page From: 631, Page To: 636

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