Clinical and histopathological profile of BRAF V600E mutation in conventional papillary thyroid carcinoma in a Filipino population

被引:1
作者
Navarro-Locsin, Cecilia Gretchen [1 ]
Chang, Ann Margaret Villarosa [2 ]
Daroy, Luisa [3 ]
Alfon, Alicia Cornista [3 ]
Andal, Jose Jasper [2 ]
Padua, Paula Francezca [1 ]
机构
[1] St Lukes Med Ctr, Dept Otolaryngol Head & Neck Surg, 279 E Rodriguez Sr Ave, Quezon City 1112, Philippines
[2] St Lukes Med Ctr, Inst Pathol, Quezon City, Philippines
[3] St Lukes Med Ctr, Res & Biotechnol, Quezon City, Philippines
关键词
BRAF V600E mutation; clinicopathological features; conventional variant; Filipinos; papillary thyroid carcinoma; BRAF(V600E) MUTATION; CLINICOPATHOLOGICAL FEATURES; TUMOR AGGRESSIVENESS; PROGNOSTIC-FACTORS; KOREAN POPULATION; LARGE COHORT; CANCER; ASSOCIATION; PREVALENCE; RECURRENCE;
D O I
暂无
中图分类号
R36 [病理学];
学科分类号
100104 ;
摘要
BRAF V600E is a possible biomarker for risk stratification and prognostication in papillary thyroid carcinoma. Studies on its association with aggressive clinicopathological features among East Asian populations are limited. This study examines the clinical and histopathological features of this mutation in Filipinos with conventional papillary thyroid carcinoma. Methods: Formalin-fixed, paraffin embedded thyroid tissue blocks of papillary carcinoma for the study period January 2010 to December 2012 were retrieved. Slides were reviewed and described according to tumour size, variant type, sclerosis, multifocality, subcapsular location, extra-thyroidal extension, nodal metastasis, and nodal extracapsular spread. Medical records were reviewed for patient demographics and characteristics. Mutation status was determined using realtime polymerase chain reaction and sequencing. Results: Sixty-five patients were included in this study. BRAF V600E mutation prevalence was 38.46%. The mutation positive group was predominantly female, young (mean age 36 years), with tumour size less than 4 cm, and late-stage disease. Extra-thyroidal extension (60%), significant sclerosis (96%), and subcapsular tumour location (72%) were the most frequent findings. Eighty-three percent of patients with nodal metastasis had extracapsular spread. Conclusions: Compared to some Asian populations, this study of Filipino patients shows a lower prevalence of BRAF V600E mutation. The clinical and histopathological features of mutation positive patients raise important issues regarding extent of surgical excision and appropriate management of neck metastasis for this group.
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页码:141 / 148
页数:8
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