Detection of BRAF V600E mutations with next-generation sequencing in infarcted thyroid carcinomas after fine-needle aspiration

Academic Article

Abstract

  • © American Society for Clinical Pathology, 2018. All rights reserved. Objectives Fine-needle aspiration (FNA) of thyroid lesions may result in infarction and diagnostic difficulties on subsequent thyroidectomy specimens. Next-generation sequencing (NGS) methods for detection of hallmark driver BRAF V600E mutations may help characterize such tumors in which histologic alterations preclude definitive tissue diagnosis. Methods Thyroidectomy specimens with both malignant FNA diagnoses and resultant infarction were identified from our institutional database. NGS methods were used to detect BRAF V600E mutations in the infarcted thyroid carcinomas. Results Nine thyroid carcinomas with infarction were characterized as BRAF-like papillary thyroid carcinoma based on molecular driver categorization and histologic diagnosis. BRAF V600E mutations were detected in the infarcted tissue in four (67%) of six lesions. Conclusions We demonstrate detection of hallmark BRAF V600E mutations by NGS within infarcted tissue of thyroid carcinomas after FNA. This suggests a potential ancillary method of characterizing infarcted thyroid carcinomas whose altered histology may be nondiagnostic.
  • Digital Object Identifier (doi)

    Author List

  • Kouba E; Ford A; Brown CG; Yeh C; Siegal GP; Manne U; Eltoum IE
  • Start Page

  • 177
  • End Page

  • 185
  • Volume

  • 150
  • Issue

  • 2