Prostate cancer pathologic stage pT2b (2002 TNM staging system): does it exist?
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | International Braz J Urol (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382006000100007 |
Resumo: | OBJECTIVE: In the 1997 TNM staging system, tumors were classified into a single subdivision: T2a, and bilateral tumor involvement (T2b). In the 2002 TNM staging system, tumors are subclassified as T2a (less than one half of one lobe involvement), T2b (more than one half of one lobe involvement), and T2c (bilateral involvement). A recent study questioned the existence of a true pathologic pT2b tumor. The aim of our study is to verify this question. MATERIALS AND METHODS: The study population consisted of 224 men submitted to radical retropubic prostatectomy. The surgical specimens were histologically evaluated by complete embedding and whole-mount processing. Tumor extent was evaluated by a point-count method. The surgical specimens were staged according to the 2002 TNM staging system. RESULTS: Using the 2002 TNM criteria, the surgical specimens were classified as pT2a, 28 (12.50%); pT2b, 0 (0%); pT2c, 138 (61.61%); pT3a, 30 (13.39%); and, pT3b, 28 (12.50%). Using the point-count method for tumor extent evaluation, the minimum and maximum total points obtained in unilateral tumors were 192 and 368 points, respectively; the most extensive unilateral tumor showed 68 positive points (less than half the minimum total point-count). CONCLUSIONS: Using the point-count method for tumor extent, our study questions a real existence for pathologic stage pT2b tumors (unilateral tumors involving greater than one-half of one lobe). |
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Prostate cancer pathologic stage pT2b (2002 TNM staging system): does it exist?prostate neoplasmscarcinomapathologyprostate-specific antigenOBJECTIVE: In the 1997 TNM staging system, tumors were classified into a single subdivision: T2a, and bilateral tumor involvement (T2b). In the 2002 TNM staging system, tumors are subclassified as T2a (less than one half of one lobe involvement), T2b (more than one half of one lobe involvement), and T2c (bilateral involvement). A recent study questioned the existence of a true pathologic pT2b tumor. The aim of our study is to verify this question. MATERIALS AND METHODS: The study population consisted of 224 men submitted to radical retropubic prostatectomy. The surgical specimens were histologically evaluated by complete embedding and whole-mount processing. Tumor extent was evaluated by a point-count method. The surgical specimens were staged according to the 2002 TNM staging system. RESULTS: Using the 2002 TNM criteria, the surgical specimens were classified as pT2a, 28 (12.50%); pT2b, 0 (0%); pT2c, 138 (61.61%); pT3a, 30 (13.39%); and, pT3b, 28 (12.50%). Using the point-count method for tumor extent evaluation, the minimum and maximum total points obtained in unilateral tumors were 192 and 368 points, respectively; the most extensive unilateral tumor showed 68 positive points (less than half the minimum total point-count). CONCLUSIONS: Using the point-count method for tumor extent, our study questions a real existence for pathologic stage pT2b tumors (unilateral tumors involving greater than one-half of one lobe).Sociedade Brasileira de Urologia2006-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382006000100007International braz j urol v.32 n.1 2006reponame:International Braz J Urol (Online)instname:Sociedade Brasileira de Urologia (SBU)instacron:SBU10.1590/S1677-55382006000100007info:eu-repo/semantics/openAccessQuintal,Maisa M.Magna,Luis A.Guimaraes,Marbele S.Ruano,ThaisFerreira,UbirajaraBillis,Athanaseeng2006-06-01T00:00:00Zoai:scielo:S1677-55382006000100007Revistahttp://www.brazjurol.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||brazjurol@brazjurol.com.br1677-61191677-5538opendoar:2006-06-01T00:00International Braz J Urol (Online) - Sociedade Brasileira de Urologia (SBU)false |
dc.title.none.fl_str_mv |
Prostate cancer pathologic stage pT2b (2002 TNM staging system): does it exist? |
title |
Prostate cancer pathologic stage pT2b (2002 TNM staging system): does it exist? |
spellingShingle |
Prostate cancer pathologic stage pT2b (2002 TNM staging system): does it exist? Quintal,Maisa M. prostate neoplasms carcinoma pathology prostate-specific antigen |
title_short |
Prostate cancer pathologic stage pT2b (2002 TNM staging system): does it exist? |
title_full |
Prostate cancer pathologic stage pT2b (2002 TNM staging system): does it exist? |
title_fullStr |
Prostate cancer pathologic stage pT2b (2002 TNM staging system): does it exist? |
title_full_unstemmed |
Prostate cancer pathologic stage pT2b (2002 TNM staging system): does it exist? |
title_sort |
Prostate cancer pathologic stage pT2b (2002 TNM staging system): does it exist? |
author |
Quintal,Maisa M. |
author_facet |
Quintal,Maisa M. Magna,Luis A. Guimaraes,Marbele S. Ruano,Thais Ferreira,Ubirajara Billis,Athanase |
author_role |
author |
author2 |
Magna,Luis A. Guimaraes,Marbele S. Ruano,Thais Ferreira,Ubirajara Billis,Athanase |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Quintal,Maisa M. Magna,Luis A. Guimaraes,Marbele S. Ruano,Thais Ferreira,Ubirajara Billis,Athanase |
dc.subject.por.fl_str_mv |
prostate neoplasms carcinoma pathology prostate-specific antigen |
topic |
prostate neoplasms carcinoma pathology prostate-specific antigen |
description |
OBJECTIVE: In the 1997 TNM staging system, tumors were classified into a single subdivision: T2a, and bilateral tumor involvement (T2b). In the 2002 TNM staging system, tumors are subclassified as T2a (less than one half of one lobe involvement), T2b (more than one half of one lobe involvement), and T2c (bilateral involvement). A recent study questioned the existence of a true pathologic pT2b tumor. The aim of our study is to verify this question. MATERIALS AND METHODS: The study population consisted of 224 men submitted to radical retropubic prostatectomy. The surgical specimens were histologically evaluated by complete embedding and whole-mount processing. Tumor extent was evaluated by a point-count method. The surgical specimens were staged according to the 2002 TNM staging system. RESULTS: Using the 2002 TNM criteria, the surgical specimens were classified as pT2a, 28 (12.50%); pT2b, 0 (0%); pT2c, 138 (61.61%); pT3a, 30 (13.39%); and, pT3b, 28 (12.50%). Using the point-count method for tumor extent evaluation, the minimum and maximum total points obtained in unilateral tumors were 192 and 368 points, respectively; the most extensive unilateral tumor showed 68 positive points (less than half the minimum total point-count). CONCLUSIONS: Using the point-count method for tumor extent, our study questions a real existence for pathologic stage pT2b tumors (unilateral tumors involving greater than one-half of one lobe). |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-02-01 |
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=S1677-55382006000100007 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382006000100007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1677-55382006000100007 |
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 Urologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Urologia |
dc.source.none.fl_str_mv |
International braz j urol v.32 n.1 2006 reponame:International Braz J Urol (Online) instname:Sociedade Brasileira de Urologia (SBU) instacron:SBU |
instname_str |
Sociedade Brasileira de Urologia (SBU) |
instacron_str |
SBU |
institution |
SBU |
reponame_str |
International Braz J Urol (Online) |
collection |
International Braz J Urol (Online) |
repository.name.fl_str_mv |
International Braz J Urol (Online) - Sociedade Brasileira de Urologia (SBU) |
repository.mail.fl_str_mv |
||brazjurol@brazjurol.com.br |
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1750318069463384064 |