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Title: Analysis of renal cell carcinoma with subdiaphragmatic macroscopic venous invasion (T3b)
Authors: Klaver, Sjoerd ×
Joniau, Steven
Suy - Verburg, Raphael
Oyen, Raymond
Van Poppel, Hendrik #
Issue Date: Feb-2008
Publisher: Blackwell Science
Series Title: BJU International vol:101 issue:4 pages:444-449
Abstract: OBJECTIVE To review our institutional experience of surgery for renal cell carcinoma (RCC) with subdiaphragmatic macroscopic venous invasion (T3b) and to assess variables associated with cancer-specific survival (CSS), as the stratification of RCC with venous involvement (T3b and T3c) is subject to debate.
PATIENTS AND METHODS
We retrospectively reviewed the hospital records of patients who underwent a radical nephrectomy with resection of subdiaphragmatic tumour thrombus (T T) between October 1990 and May 2006. The log-rank and Cox uni- and multivariate regression analysis were used to evaluate predictive factors for CSS.
RESULTS
In all, 101 cases were identified. In the N0M0 group, univariate Cox regression analysis confirmed that ipsilateral adrenal gland invasion, Mayo Clinic level of T T, histological subtype and fat invasion were significantly associated with worse CSS. In multivariate Cox regression analysis, only Mayo Clinic level of T T was an independent predictor for CSS. In the subgroup with renal vein involvement only, the median CSS was not reached. In the subgroups with level I, II and III T T involvement, the median CSS was 69, 26 and 21 months, respectively. In the N+ and/or M+ group, only tumour size and type were independent predictors of CSS, while the level of T T was not. Radical nephrectomy yielded poor results with a median CSS of 13 months.
CONCLUSION
The Mayo Clinic level of T T is an independent prognostic predictor for CSS in non-metastatic T3b RCC. We strongly support the need for re-classification of the currently applied 2002 Tumour-Node-Metastasis staging system, which in its present form does not discriminate between levels of subdiaphragmatic venous invasion.
URI: 
ISSN: 1464-4096
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Urology Section (-)
Radiology
× corresponding author
# (joint) last author

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