Dal Cin et al. [32] showed that genetic alterations in bilateral renal carcinomas correlated with pathological histological types, such as chromosomal triploid associated with pRCC, deletion of the short arm of chromosome 3 associated with non-pRCC, and combined Y chromosome and deletion of chromosome 1 associated with eosinophilic tumorigenesis. Here, PRCC is linked to renal carcinoma.