For almost every cancer in every organ tumor size is an important prognostic variable. However, for PCa the way to measure the tumor is not straightforward and a number of methods have evolved, of which the 2 most important are 1) Vc and 2) TPI. TPI is more often prognostic than Vc (reference 4 in article) but they are directly related (TPI = Vc X 100/PV). Thus, it is no surprise to learn, as these authors have, that TPI is significantly higher in smaller prostates.
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机译：对于几乎每个器官中的所有癌症而言，肿瘤的大小都是重要的预后变量。然而，对于PCa而言，测量肿瘤的方法并不简单，并且已经发展出许多方法，其中最重要的2种方法是1）Vc和2）TPI。 TPI比Vc更具预后性（文章中的参考文献4），但它们直接相关（TPI = Vc X 100 / PV）。因此，像这些作者一样，得知较小的前列腺中的TPI显着较高也就不足为奇了。
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