Objective: At present, computed tomography (CT) is used in almost all patients with renal tumors. We aimed to investigate the relationship between visceral adipose tissue (VAT), as assessed by CT, and various other factors in patients with renal cell carcinoma (RCC). Methods: We undertook an examination of VAT in 117 male patients undergoing nephrectomy or partial nephrectomy at Chiba University Hospital using software designed to detect VAT in the horizontal plane of the body cavity. Pathological stage, microvascular invasion, tumor grade, performance status, C-reactive protein, BMI, hypertension, hyperlipemia, hyperglycemia, history of smoking and cause-specific survival rate were examined in relation to VAT, and multivariate Cox regression analysis was used to determine significant predictors of cause-specific survival. Results: VAT in patients with stage I disease was significantly greater than that in patients with more advanced disease (p = 0.0219). VAT in patients with microvascular invasion was significantly smaller than in those without microvascular invasion (p = 0.0260). Patients with high VAT had significantly higher cumulative cause-specific survival when compared to patients with low VAT (p = 0.0257). Conclusion: VAT was associated with better clinical features in patients with RCC. Further study is necessary in order to clarify the role of VAT in RCC.

Keywords:
Oncologic outcome, Renal cell carcinoma, Visceral obesity
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© 2010 S. Karger AG, Basel
2010
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