Galectin-3 immunostaining in thyroid neoplasms
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Jornal Brasileiro de Patologia e Medicina Laboratorial (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-24442005000500009 |
Resumo: | Although fine-needle aspiration biopsy (FNAB) of the thyroid gland is the most important presurgical proceeding in defining the malignancy of a nodular lesion, it has limitations such as shared cytological morphology between malignant and benign lesions. Galectin-3, a b-galactoside-binding lectin is expressed mainly by malignant thyroid neoplasms. Fifty-seven specimens, including 14 papillary carcinomas, 22 follicular carcinomas and 21 follicular adenomas were tested for immunohistochemical staining against galectin-3. Normal thyroid adjacent to neoplastic tissue was also examined in 48 cases. All cases of papillary carcinoma were cytoplasmic stained, 18 cases of follicular carcinoma were cytoplasmic stained, and one case of follicular adenoma showed nuclear staining. No case of normal thyroid showed immunoreactivity. Sensitivity, specificity, positive predictive value and negative predictive value were respective 88%, 98%, 96%, and 94%. Galectin-3 expression is a valuable evidence of malignancy in cases where cytomorphological features are not conclusive. This immunomediated method could increase diagnosis accuracy for FNAB, thus making surgery indication more precise. |
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Galectin-3 immunostaining in thyroid neoplasmsGalectin-3ThyroidPapillary carcinomaFollicular carcinomaFollicular adenomaCarcinoma papilarAlthough fine-needle aspiration biopsy (FNAB) of the thyroid gland is the most important presurgical proceeding in defining the malignancy of a nodular lesion, it has limitations such as shared cytological morphology between malignant and benign lesions. Galectin-3, a b-galactoside-binding lectin is expressed mainly by malignant thyroid neoplasms. Fifty-seven specimens, including 14 papillary carcinomas, 22 follicular carcinomas and 21 follicular adenomas were tested for immunohistochemical staining against galectin-3. Normal thyroid adjacent to neoplastic tissue was also examined in 48 cases. All cases of papillary carcinoma were cytoplasmic stained, 18 cases of follicular carcinoma were cytoplasmic stained, and one case of follicular adenoma showed nuclear staining. No case of normal thyroid showed immunoreactivity. Sensitivity, specificity, positive predictive value and negative predictive value were respective 88%, 98%, 96%, and 94%. Galectin-3 expression is a valuable evidence of malignancy in cases where cytomorphological features are not conclusive. This immunomediated method could increase diagnosis accuracy for FNAB, thus making surgery indication more precise.Sociedade Brasileira de Patologia Clínica2005-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-24442005000500009Jornal Brasileiro de Patologia e Medicina Laboratorial v.41 n.5 2005reponame:Jornal Brasileiro de Patologia e Medicina Laboratorial (Online)instname:Sociedade Brasileira de Patologia (SBP)instacron:SBP10.1590/S1676-24442005000500009info:eu-repo/semantics/openAccessSegura,Marcos Emanuel de AlcântaraMagalhães,Albino Verçosa deeng2006-02-10T00:00:00Zoai:scielo:S1676-24442005000500009Revistahttp://www.scielo.br/jbpmlhttps://old.scielo.br/oai/scielo-oai.php||jbpml@sbpc.org.br1678-47741676-2444opendoar:2006-02-10T00:00Jornal Brasileiro de Patologia e Medicina Laboratorial (Online) - Sociedade Brasileira de Patologia (SBP)false |
dc.title.none.fl_str_mv |
Galectin-3 immunostaining in thyroid neoplasms |
title |
Galectin-3 immunostaining in thyroid neoplasms |
spellingShingle |
Galectin-3 immunostaining in thyroid neoplasms Segura,Marcos Emanuel de Alcântara Galectin-3 Thyroid Papillary carcinoma Follicular carcinoma Follicular adenoma Carcinoma papilar |
title_short |
Galectin-3 immunostaining in thyroid neoplasms |
title_full |
Galectin-3 immunostaining in thyroid neoplasms |
title_fullStr |
Galectin-3 immunostaining in thyroid neoplasms |
title_full_unstemmed |
Galectin-3 immunostaining in thyroid neoplasms |
title_sort |
Galectin-3 immunostaining in thyroid neoplasms |
author |
Segura,Marcos Emanuel de Alcântara |
author_facet |
Segura,Marcos Emanuel de Alcântara Magalhães,Albino Verçosa de |
author_role |
author |
author2 |
Magalhães,Albino Verçosa de |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Segura,Marcos Emanuel de Alcântara Magalhães,Albino Verçosa de |
dc.subject.por.fl_str_mv |
Galectin-3 Thyroid Papillary carcinoma Follicular carcinoma Follicular adenoma Carcinoma papilar |
topic |
Galectin-3 Thyroid Papillary carcinoma Follicular carcinoma Follicular adenoma Carcinoma papilar |
description |
Although fine-needle aspiration biopsy (FNAB) of the thyroid gland is the most important presurgical proceeding in defining the malignancy of a nodular lesion, it has limitations such as shared cytological morphology between malignant and benign lesions. Galectin-3, a b-galactoside-binding lectin is expressed mainly by malignant thyroid neoplasms. Fifty-seven specimens, including 14 papillary carcinomas, 22 follicular carcinomas and 21 follicular adenomas were tested for immunohistochemical staining against galectin-3. Normal thyroid adjacent to neoplastic tissue was also examined in 48 cases. All cases of papillary carcinoma were cytoplasmic stained, 18 cases of follicular carcinoma were cytoplasmic stained, and one case of follicular adenoma showed nuclear staining. No case of normal thyroid showed immunoreactivity. Sensitivity, specificity, positive predictive value and negative predictive value were respective 88%, 98%, 96%, and 94%. Galectin-3 expression is a valuable evidence of malignancy in cases where cytomorphological features are not conclusive. This immunomediated method could increase diagnosis accuracy for FNAB, thus making surgery indication more precise. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-24442005000500009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-24442005000500009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1676-24442005000500009 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Patologia Clínica |
publisher.none.fl_str_mv |
Sociedade Brasileira de Patologia Clínica |
dc.source.none.fl_str_mv |
Jornal Brasileiro de Patologia e Medicina Laboratorial v.41 n.5 2005 reponame:Jornal Brasileiro de Patologia e Medicina Laboratorial (Online) instname:Sociedade Brasileira de Patologia (SBP) instacron:SBP |
instname_str |
Sociedade Brasileira de Patologia (SBP) |
instacron_str |
SBP |
institution |
SBP |
reponame_str |
Jornal Brasileiro de Patologia e Medicina Laboratorial (Online) |
collection |
Jornal Brasileiro de Patologia e Medicina Laboratorial (Online) |
repository.name.fl_str_mv |
Jornal Brasileiro de Patologia e Medicina Laboratorial (Online) - Sociedade Brasileira de Patologia (SBP) |
repository.mail.fl_str_mv |
||jbpml@sbpc.org.br |
_version_ |
1752122293973155840 |