The multicenter standardized clinical and biological database will identify 2 homogeneous groups of PCa patients with characteristics of either aggressive or potentially indolent disease. The investigators expect that the analysis of pelvic adipose tissue will demonstrate whether some categories of 1/ Lipids (reflecting the diet), 2/ Adipokines and 3/ Stored Xenobiotics are preferentially associated with a greater or lower risk of PCa aggressiveness. Such identification could then lead to preventive strategies.