Open AccessIMMUNOHISTOCHEMICAL EXPRESSION OF BRAFV600E IN MELANOMA CASES
Author(s) -
Muhammad Umer,
Farhan Akhtar,
Nighat Jamal,
Rabia Ahmad,
Sumaira Bukhsh,
Hamza Mansur
Publication year - 2021
Publication title -
pakistan armed forces medical journal
Language(s) - English
Resource type - Journals
eISSN - 2411-8842
pISSN - 0030-9648
DOI - 10.51253/pafmj.v71i5.5955
Subject(s) - immunohistochemistry , medicine , melanoma , tissue microarray , histopathology , pathology , cancer research
Objective: To evaluate the diagnostic value of Immunohistochemistry (IHC) for finding BRAFV600E mutation in melanoma patients.
Study Design: Cross-sectional study.
Place and Duration of Study: Department of Histopathology, Armed Forces Institute of Pathology, Rawalpindi Pakistan, Jan 2018 to Apr 2019.
Methodology: Hundred histologically confirmed cases of melanoma aged between 18-80 years were included over a period of one year. To create the tissue microarray and to conduct immunohistochemistry with VE1 antibody melanoma lesion samples were selected.
Results: Ninety-four cases out of 100, were melanoma positive for BRAFV600E detected on immunohistochemistry (IHC) using a monoclonal antibody. The skin was the primary site in seventy-nine (79%) patients, unknown (metastatic) in nineteen and uveal was only in two cases. The diagnostic significance of immunohistochemistry (IHC) for detecting the BRAFV600E mutation in melanoma patients was independent of age, site and stage at diagnosis (p-value <0.05).
Conclusion: Testing of BRAV600E mutation by immunohistochemistry is a rapid, reliable and cost-effective tool in melanoma patients which may further help clinicians in initiating targeted therapy for these patients.