Abstract：
OBJECTIVE:To evaluate the prognostic role of tumour size in pathological stage T3a renal cell carcinoma (RCC) with fat invasion only and to assess whether this subgroup maintains its relevance over the other pathological stages. METHODS:We retrospectively studied 2113 patients from eight international institutions who were treated by surgical resection for T2-4 RCC. Disease-specific survival (DSS) was evaluated with univariate and multivariate analyses. RESULTS:Univariate analysis of patients with T3a RCC showed that tumour size was significantly associated with DSS (HR: 1.09, 95% CI: 1.05-1.12, p<0.001). An ideal cut-off of 7 cm for these patients was identified with a scatter plot of Martingale residuals and tumour size. The two T3a groups were distinctly different with respect to clinicopathologic parameters (performance status, metastases, grade, histological subtype) and survival (p<0.001). Median survival time was not reached for patients with T2 and T3a< or =7 cm disease with a 5- and 10-yr DSS rate of 70% and 59% and 63% and 53%, respectively. Median survival time for patients with T3a>7 cm, T3b, T3c, and T4 disease was 54, 46, 21, and 11 mo, respectively, with 5- and 10-yr DSS rates of 46% and 36%, 46% and 36%, 34% and 0%, and 16% and 14%, respectively. CONCLUSIONS:Our data indicate that tumour size is an important factor for predicting outcome of patients with T3a RCC with fat invasion only. Our findings should merit consideration during the next revision of the TNM classification.
journal_name
Eur Uroljournal_title
European urologyauthors
Lam JS,Klatte T,Patard JJ,Goel RH,Guillè F,Lobel B,Abbou CC,De La Taille A,Tostain J,Cindolo L,Altieri V,Ficarra V,Artibani W,Prayer-Galetti T,Schips L,Zigeuner R,Pantuck AJ,Figlin RA,Belldegrun ASdoi
10.1016/j.eururo.2007.01.106subject
Has Abstractpub_date
2007-07-01 00:00:00pages
155-62issue
1eissn
0302-2838issn
1873-7560pii
S0302-2838(07)00146-7journal_volume
52pub_type
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