Molecular Testing for Thyroid Nodules: The Experience at McGill University Teaching Hospitals in Canada

In the past few decades, molecular characterization of thyroid cancer has made significant progress and is able to identify thyroid-cancer-related molecular markers that can then be applied clinically for improved decision making. The aim of this review is to provide a general overview about the mol...

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Main Authors: Mohannad Rajab, Richard J. Payne, Véronique-Isabelle Forest, Marc Pusztaszeri
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/14/17/4140
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author Mohannad Rajab
Richard J. Payne
Véronique-Isabelle Forest
Marc Pusztaszeri
author_facet Mohannad Rajab
Richard J. Payne
Véronique-Isabelle Forest
Marc Pusztaszeri
author_sort Mohannad Rajab
collection DOAJ
description In the past few decades, molecular characterization of thyroid cancer has made significant progress and is able to identify thyroid-cancer-related molecular markers that can then be applied clinically for improved decision making. The aim of this review is to provide a general overview about the molecular markers (mutations and alterations) of thyroid cancers, present several molecular tests, and discuss the clinical applications of identifying these markers supported by the clinical experience of several high-volume thyroid cancer specialists at the McGill university hospitals in Montreal, Canada. Our group experience showed that molecular testing can reclassify more than half of the patients with indeterminate thyroid nodules (Bethesda III and IV) into benign and spare these patients from unnecessary diagnostic surgery. Furthermore, it can help optimize the initial management in thyroid cancers with no evidence of high risk of recurrence of disease preoperatively. While routine molecular testing is not firmly established for thyroid FNA specimens that are suspicious or positive for malignancy (Bethesda V and VI), knowledge of a thyroid nodule’s molecular risk group profile in such cases, together with its clinical and radiologic features, can help select the optimal surgical options (lobectomy versus upfront total thyroidectomy and central neck dissection), as demonstrated by our studies.
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spelling doaj.art-1abb4d23ae1143c69d18fb5834633e712023-11-23T12:50:31ZengMDPI AGCancers2072-66942022-08-011417414010.3390/cancers14174140Molecular Testing for Thyroid Nodules: The Experience at McGill University Teaching Hospitals in CanadaMohannad Rajab0Richard J. Payne1Véronique-Isabelle Forest2Marc Pusztaszeri3Department of Otolaryngology—Head and Neck Surgery, Jewish General Hospital, McGill University, 3755 Côte-Sainte-Catherine Road, Montreal, QC H3T 1E2, CanadaDepartment of Otolaryngology—Head and Neck Surgery, Jewish General Hospital, McGill University, 3755 Côte-Sainte-Catherine Road, Montreal, QC H3T 1E2, CanadaDepartment of Otolaryngology—Head and Neck Surgery, Jewish General Hospital, McGill University, 3755 Côte-Sainte-Catherine Road, Montreal, QC H3T 1E2, CanadaDepartment of Pathology, Jewish General Hospital, McGill University, 3755 Côte-Sainte-Catherine Road, Montreal, QC H3T 1E2, CanadaIn the past few decades, molecular characterization of thyroid cancer has made significant progress and is able to identify thyroid-cancer-related molecular markers that can then be applied clinically for improved decision making. The aim of this review is to provide a general overview about the molecular markers (mutations and alterations) of thyroid cancers, present several molecular tests, and discuss the clinical applications of identifying these markers supported by the clinical experience of several high-volume thyroid cancer specialists at the McGill university hospitals in Montreal, Canada. Our group experience showed that molecular testing can reclassify more than half of the patients with indeterminate thyroid nodules (Bethesda III and IV) into benign and spare these patients from unnecessary diagnostic surgery. Furthermore, it can help optimize the initial management in thyroid cancers with no evidence of high risk of recurrence of disease preoperatively. While routine molecular testing is not firmly established for thyroid FNA specimens that are suspicious or positive for malignancy (Bethesda V and VI), knowledge of a thyroid nodule’s molecular risk group profile in such cases, together with its clinical and radiologic features, can help select the optimal surgical options (lobectomy versus upfront total thyroidectomy and central neck dissection), as demonstrated by our studies.https://www.mdpi.com/2072-6694/14/17/4140thyroid nodulemolecular testingThyroSeqfine needle aspirationAfirmamutation
spellingShingle Mohannad Rajab
Richard J. Payne
Véronique-Isabelle Forest
Marc Pusztaszeri
Molecular Testing for Thyroid Nodules: The Experience at McGill University Teaching Hospitals in Canada
Cancers
thyroid nodule
molecular testing
ThyroSeq
fine needle aspiration
Afirma
mutation
title Molecular Testing for Thyroid Nodules: The Experience at McGill University Teaching Hospitals in Canada
title_full Molecular Testing for Thyroid Nodules: The Experience at McGill University Teaching Hospitals in Canada
title_fullStr Molecular Testing for Thyroid Nodules: The Experience at McGill University Teaching Hospitals in Canada
title_full_unstemmed Molecular Testing for Thyroid Nodules: The Experience at McGill University Teaching Hospitals in Canada
title_short Molecular Testing for Thyroid Nodules: The Experience at McGill University Teaching Hospitals in Canada
title_sort molecular testing for thyroid nodules the experience at mcgill university teaching hospitals in canada
topic thyroid nodule
molecular testing
ThyroSeq
fine needle aspiration
Afirma
mutation
url https://www.mdpi.com/2072-6694/14/17/4140
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AT veroniqueisabelleforest moleculartestingforthyroidnodulestheexperienceatmcgilluniversityteachinghospitalsincanada
AT marcpusztaszeri moleculartestingforthyroidnodulestheexperienceatmcgilluniversityteachinghospitalsincanada