Outcomes of the Tall-Cell Variant of Papillary Thyroid Carcinoma in Patients with Different Ages: A 17-Year Mono-Institutional Experience

The tall-cell variant of papillary thyroid carcinoma (TCPTC) is the most common aggressive variant of papillary thyroid carcinoma (PTC) and typically occurs in older patients. In this study, we analyzed retrospectively the largest mono-institutional series of PTCs with tall-cell features (989 patien...

Full description

Bibliographic Details
Main Authors: Agnese Proietti, Francesca Signorini, Riccardo Giannini, Anello Marcello Poma, Elisabetta Macerola, Liborio Torregrossa, Gabriele Materazzi, Alessio Basolo, Ferruccio Santini, Rossella Elisei, David Viola, Fulvio Basolo, Clara Ugolini
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/15/7/2152
_version_ 1797608222569267200
author Agnese Proietti
Francesca Signorini
Riccardo Giannini
Anello Marcello Poma
Elisabetta Macerola
Liborio Torregrossa
Gabriele Materazzi
Alessio Basolo
Ferruccio Santini
Rossella Elisei
David Viola
Fulvio Basolo
Clara Ugolini
author_facet Agnese Proietti
Francesca Signorini
Riccardo Giannini
Anello Marcello Poma
Elisabetta Macerola
Liborio Torregrossa
Gabriele Materazzi
Alessio Basolo
Ferruccio Santini
Rossella Elisei
David Viola
Fulvio Basolo
Clara Ugolini
author_sort Agnese Proietti
collection DOAJ
description The tall-cell variant of papillary thyroid carcinoma (TCPTC) is the most common aggressive variant of papillary thyroid carcinoma (PTC) and typically occurs in older patients. In this study, we analyzed retrospectively the largest mono-institutional series of PTCs with tall-cell features (989 patients) over a 17-year period, re-evaluating tumors based on age at presentation and outcomes in different age groups. We divided patients into three age groups following different criteria (the criterion from the American Joint Committee on Cancer Tumor Node Metastasis (AJCC TNM) guidelines, criterion for the statistical division into tertiles and adolescent/post-adolescent criterion) to analyze the clinicopathological characteristics in different age groups, especially in terms of recurrence-free survival (RFS) and distant recurrence-free survival (DRFS). We obtained three main results: 1. the population is distributed among the different age groups, and therefore, this type of cancer is not exclusively found among those of an older age; 2. in the RFS analysis, we can see a higher probability of local recurrence in the younger and older groups and, unexpectedly, a lower probability of local recurrence in the “median age” group; and 3. in the DRFS analysis, we can observe a higher probability of distant recurrence in older patients. From a molecular perspective, no significant differences in the mutational status of <i>BRAF</i> were detected according to different age groups, while mutations in the <i>TERT</i> promoter were exclusively present in older patients of all age groups, highlighting the potential prognostic implications of <i>TERT</i> promoter mutations in PTCs. In conclusion, the results of this series confirm that TC morphology alone in PTCs does not have the same negative prognostic significance in the younger population as in the older population. The reason for these different outcomes remains unclear and needs further studies.
first_indexed 2024-03-11T05:40:25Z
format Article
id doaj.art-040b0f13d3ca4d5a980aee8072c5090b
institution Directory Open Access Journal
issn 2072-6694
language English
last_indexed 2024-03-11T05:40:25Z
publishDate 2023-04-01
publisher MDPI AG
record_format Article
series Cancers
spelling doaj.art-040b0f13d3ca4d5a980aee8072c5090b2023-11-17T16:26:54ZengMDPI AGCancers2072-66942023-04-01157215210.3390/cancers15072152Outcomes of the Tall-Cell Variant of Papillary Thyroid Carcinoma in Patients with Different Ages: A 17-Year Mono-Institutional ExperienceAgnese Proietti0Francesca Signorini1Riccardo Giannini2Anello Marcello Poma3Elisabetta Macerola4Liborio Torregrossa5Gabriele Materazzi6Alessio Basolo7Ferruccio Santini8Rossella Elisei9David Viola10Fulvio Basolo11Clara Ugolini12Section of Pathology, University Hospital of Pisa, 56126 Pisa, ItalyDepartment of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, ItalyDepartment of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, ItalyDepartment of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, ItalySection of Pathology, University Hospital of Pisa, 56126 Pisa, ItalyDepartment of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, ItalyDepartment of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, ItalyUnit of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, ItalyUnit of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, ItalyUnit of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, ItalySection of Endocrinology, Versilia Hospital, 55041 Camaiore, ItalyDepartment of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, ItalyDepartment of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, ItalyThe tall-cell variant of papillary thyroid carcinoma (TCPTC) is the most common aggressive variant of papillary thyroid carcinoma (PTC) and typically occurs in older patients. In this study, we analyzed retrospectively the largest mono-institutional series of PTCs with tall-cell features (989 patients) over a 17-year period, re-evaluating tumors based on age at presentation and outcomes in different age groups. We divided patients into three age groups following different criteria (the criterion from the American Joint Committee on Cancer Tumor Node Metastasis (AJCC TNM) guidelines, criterion for the statistical division into tertiles and adolescent/post-adolescent criterion) to analyze the clinicopathological characteristics in different age groups, especially in terms of recurrence-free survival (RFS) and distant recurrence-free survival (DRFS). We obtained three main results: 1. the population is distributed among the different age groups, and therefore, this type of cancer is not exclusively found among those of an older age; 2. in the RFS analysis, we can see a higher probability of local recurrence in the younger and older groups and, unexpectedly, a lower probability of local recurrence in the “median age” group; and 3. in the DRFS analysis, we can observe a higher probability of distant recurrence in older patients. From a molecular perspective, no significant differences in the mutational status of <i>BRAF</i> were detected according to different age groups, while mutations in the <i>TERT</i> promoter were exclusively present in older patients of all age groups, highlighting the potential prognostic implications of <i>TERT</i> promoter mutations in PTCs. In conclusion, the results of this series confirm that TC morphology alone in PTCs does not have the same negative prognostic significance in the younger population as in the older population. The reason for these different outcomes remains unclear and needs further studies.https://www.mdpi.com/2072-6694/15/7/2152thyroid carcinomapapillary carcinomatall cellageclinical outcome
spellingShingle Agnese Proietti
Francesca Signorini
Riccardo Giannini
Anello Marcello Poma
Elisabetta Macerola
Liborio Torregrossa
Gabriele Materazzi
Alessio Basolo
Ferruccio Santini
Rossella Elisei
David Viola
Fulvio Basolo
Clara Ugolini
Outcomes of the Tall-Cell Variant of Papillary Thyroid Carcinoma in Patients with Different Ages: A 17-Year Mono-Institutional Experience
Cancers
thyroid carcinoma
papillary carcinoma
tall cell
age
clinical outcome
title Outcomes of the Tall-Cell Variant of Papillary Thyroid Carcinoma in Patients with Different Ages: A 17-Year Mono-Institutional Experience
title_full Outcomes of the Tall-Cell Variant of Papillary Thyroid Carcinoma in Patients with Different Ages: A 17-Year Mono-Institutional Experience
title_fullStr Outcomes of the Tall-Cell Variant of Papillary Thyroid Carcinoma in Patients with Different Ages: A 17-Year Mono-Institutional Experience
title_full_unstemmed Outcomes of the Tall-Cell Variant of Papillary Thyroid Carcinoma in Patients with Different Ages: A 17-Year Mono-Institutional Experience
title_short Outcomes of the Tall-Cell Variant of Papillary Thyroid Carcinoma in Patients with Different Ages: A 17-Year Mono-Institutional Experience
title_sort outcomes of the tall cell variant of papillary thyroid carcinoma in patients with different ages a 17 year mono institutional experience
topic thyroid carcinoma
papillary carcinoma
tall cell
age
clinical outcome
url https://www.mdpi.com/2072-6694/15/7/2152
work_keys_str_mv AT agneseproietti outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT francescasignorini outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT riccardogiannini outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT anellomarcellopoma outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT elisabettamacerola outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT liboriotorregrossa outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT gabrielematerazzi outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT alessiobasolo outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT ferrucciosantini outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT rossellaelisei outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT davidviola outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT fulviobasolo outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience
AT claraugolini outcomesofthetallcellvariantofpapillarythyroidcarcinomainpatientswithdifferentagesa17yearmonoinstitutionalexperience