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BRAF K601E Mutation in Oncocytic Carcinoma of the Thyroid: A Case Report and Literature Review

Overview
Journal J Clin Med
Specialty General Medicine
Date 2023 Nov 25
PMID 38002585
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Abstract

Background: Thyroid carcinoma (TC) is the most common endocrine cancer, with papillary thyroid carcinoma (PTC) being the most common subtype. BRAF and RAS oncogene were characterized as the most frequently altered genes in PTC, with a strong association between genotype and histotype. The most common mutation in BRAF gene is V600E and is prevalent in classic and aggressive variants of PTC, while BRAF K601E mutation is the most common among the other rare BRAF mutations. BRAF K601E mutated thyroid carcinomas are usually characterized by low aggressiveness, except for anecdotal cases of poorly differentiated TC.

Case Presentation: We described a case of oncocytic carcinoma of the thyroid (OCA) with an aggressive clinical course, including widespread metastasis and resistance to radioiodine treatment. Molecular analysis revealed the exclusive presence of the BRAF K601E mutation in both primary tumor and metastatic lesions. Accordingly, a revision of the literature about aggressive TC cases carrying BRAF K601E mutation was performed.

Conclusion: Although rare, this case emphasizes the relevance of considering BRAF K601E mutation in advanced non-PTC thyroid carcinomas, since it can be considered an actionable mutation for target therapies.

Citing Articles

Biomarkers in Thyroid Cancer: Emerging Opportunities from Non-Coding RNAs and Mitochondrial Space.

Cabane P, Correa C, Bode I, Aguilar R, Elorza A Int J Mol Sci. 2024; 25(12).

PMID: 38928426 PMC: 11204084. DOI: 10.3390/ijms25126719.

References
1.
McFadden D, Sadow P . Genetics, Diagnosis, and Management of Hürthle Cell Thyroid Neoplasms. Front Endocrinol (Lausanne). 2021; 12:696386. PMC: 8223676. DOI: 10.3389/fendo.2021.696386. View

2.
Matrone A, Campopiano M, Nervo A, Sapuppo G, Tavarelli M, De Leo S . Differentiated Thyroid Cancer, From Active Surveillance to Advanced Therapy: Toward a Personalized Medicine. Front Endocrinol (Lausanne). 2020; 10:884. PMC: 6961292. DOI: 10.3389/fendo.2019.00884. View

3.
Cabanillas M, Ryder M, Jimenez C . Targeted Therapy for Advanced Thyroid Cancer: Kinase Inhibitors and Beyond. Endocr Rev. 2019; 40(6):1573-1604. PMC: 7341904. DOI: 10.1210/er.2019-00007. View

4.
Schulten H, Salama S, Al-Mansouri Z, Alotibi R, Al-Ghamdi K, Al-Hamour O . BRAF mutations in thyroid tumors from an ethnically diverse group. Hered Cancer Clin Pract. 2012; 10(1):10. PMC: 3434056. DOI: 10.1186/1897-4287-10-10. View

5.
Romei C, Tacito A, Molinaro E, Piaggi P, Cappagli V, Pieruzzi L . Clinical, pathological and genetic features of anaplastic and poorly differentiated thyroid cancer: A single institute experience. Oncol Lett. 2018; 15(6):9174-9182. PMC: 5958691. DOI: 10.3892/ol.2018.8470. View