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Published:
Dec 16, 2020DOI:
10.4314/ahs.v20i4.40Keywords:
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Main Article Content
BRAFV600E hot spot mutation in thyroid carcinomas: first Moroccan experience from a single-institution retrospective study
Abstract
Background: The incidence of thyroid cancer is increasing worldwide at an alarming rate. BRAFV600E mutation is described to be associated with a worse prognostic of thyroid carcinomas, as well as extrathyroidal invasion and increased mortality.
Objective: To our knowledge, there are no reported studies neither from Morocco nor from other Maghreb countries re- garding the prevalence of BRAFV600E mutation in thyroid carcinomas. Here we aim to evaluate the frequency of BRAFV600E oncogene in Moroccan thyroid carcinomas.
Methods: In this Single-Institution retrospective study realized in the Anatomic Pathology and Histology Service in the Mil- itary Hospital of Instruction Mohammed V ‘HMIMV’ in Rabat, we report, using direct genomic sequencing, the assessment of BRAFV600E in 37 thyroid tumors.
Results: We detected BRAFV600E mutation exclusively in Papillary Thyroid Carcinomas ‘PTC’ with a prevalence of 28% (8 PTC out 29 PTC). Like international trends, Papillary Thyroid Carcinomas ’PTC’ is more frequent than Follicular Thyroid Carcinomas ‘FTC’ and Anaplastic Thyroid Carcinomas ‘ATC’ (29 PTC, 7 FTC and 1 ATC).
Conclusion: Our finding gives to the international community the first estimated incidence of this oncogene in Morocco showing that this prevalence falls within the range of international trends (30% to 90%) reported in distinct worldwide ge- ographic regions.
Keywords: Biomarker; BRAFV600E; Thyroid cancer; Morocco.
