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J Am Soc Cytopathol ; 7(2): 92-98, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-31043258

RESUMO

INTRODUCTION: Molecular thyroid testing is increasingly being used to further stratify risk of malignancy in cytologically indeterminate thyroid nodules. We report our experience using three commercially available tests in a community hospital setting. MATERIALS AND METHODS: All molecular test reports (Afirma, ThyroSeqV2, and ThyGENX/ThyraMIR) on thyroid nodules from Einstein Medical Center, Philadelphia, between April 2014 to March 2017 were compared with follow-up surgical results as part of a quality assurance exercise. Slides and records of disparities were reviewed. RESULTS: Ninety-five thyroid nodules with molecular testing were identified with surgical follow up available on 19. No benign Afirma results had surgical follow-up. All 7 suspicious Afirma results had surgery, with 3 being benign on follow-up. Ten ThyroseqV2 tested nodules had follow-up surgery and included 2 papillary carcinomas following a completely negative result and another papillary carcinoma following over expression of the NIS gene reported as likely benign. One case with a TP53 mutation was benign on follow-up total thyroidectomy. Follow-up on 1 NRAS point mutation by ThyGenX/ThyraMIR was confirmed malignant although the microRNA portion of the test was negative. CONCLUSIONS: Quality assurance review refined our utilization practices as we better appreciated the limitations of molecular testing and use relative to other factors in managing indeterminate thyroid nodules.

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