Stage A prostate cancer : comparison of subclassification between Japanese rule and TNM, and outcome

Between 1980 and June, 2002, transurethral resection of prostate was performed against 3294 cases of benign prostatic hyperplasia, and 144 cases of stage A cancer were detected (4.4%). Among these cases, 136 cases which had complete records of examination were studied. Annual number of stage A and A...

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Détails bibliographiques
Publié dans:Hinyokika kiyo. Acta urologica Japonica. - 1962. - 49(2003), 10 vom: 10. Okt., Seite 579-82
Auteur principal: Tanaka, Masashi (Auteur)
Autres auteurs: Suzuki, Noriyuki, Nakatsu, Hiroomi, Murakami, Shino, Matsuzaki, Osamu, Shimazaki, Jun
Format: Article
Langue:Japanese
Publié: 2003
Accès à la collection:Hinyokika kiyo. Acta urologica Japonica
Sujets:Comparative Study English Abstract Journal Article
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520 |a Between 1980 and June, 2002, transurethral resection of prostate was performed against 3294 cases of benign prostatic hyperplasia, and 144 cases of stage A cancer were detected (4.4%). Among these cases, 136 cases which had complete records of examination were studied. Annual number of stage A and A1:A2 ratio were not influenced by introducing PSA determination from 1991, although the number of T1c has been increasing gradually. Since subclassification of stage A is different between Japanese rules (A1; 3 chips of cancer with well-differentiated adenocarcinoma, A2; others) and TNM (T1a; 5% of less number of chips with cancer, T1b; others), two criteria were compared. Coincidence was found with 93.7%, and disagreement was due to ratio of number of chips with cancer to whole number resected, or different grade. The former difference was caused by a larger or smaller prostate. Most cases of A1 and A2 were subjected to watchful waiting or subsequent therapy. PSA was elevated in 10 cases (7%), two of which died from progression of cancer. Other cases were disease-free. Individual pathological findings are important for subclassification of stage A 
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700 1 |a Nakatsu, Hiroomi  |e verfasserin  |4 aut 
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700 1 |a Matsuzaki, Osamu  |e verfasserin  |4 aut 
700 1 |a Shimazaki, Jun  |e verfasserin  |4 aut 
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