• S Gun, M Kefeli, and L Yildiz.
• Department of Pathology, Medical School, Ondokuz Mayis University, Atakum - SAMSUN, Turkey.
• Niger J Clin Pract. 2021 May 1; 24 (5): 770-773.

ObjectiveBRAF mutation is detected in 50-70% of melanomas. The molecular methods used to detect BRAF mutations are 80-90% sensitive, specific, and expensive methods. Immunohistochemistry is a relatively common, rapid, relatively inexpensive method in pathology practice compared to molecular techniques.AimsWe aimed to compare immunohistochemical and molecular methods in our case of malign melanoma in which we investigated BRAF mutation with "real time PCR" method and to investigate the compatibility of molecular test results of BRAF immunohistochemistry results as a preliminary test.MethodsSelected blocks of 30 patients with metastatic melanoma who came to our department for BRAF mutation detection were subjected to real time PCR molecular method and immunohistochemical study was performed with BRAF primer antibody.ResultsBRAF mutation was detected by molecular method in 7 of 30 cases (23.33%).ConclusionIn all of these 7 cases, positive immunohistochemical staining was identified (100%). In conclusion, the use of BRAF immunohistochemistry as a screening test in the detection of mutant disease will allow the cost-effective use of molecular testing.

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