Les facteurs pronostiques

The independent value of other biological factors has to be studied as well as the prognostic value of standard uptake value, by the primar tumor, of glucose analog as measured by PET-scan. The development and validation of prognostic classifications could also be of great interest. The international collaboration set up by IASLC for TNM revision proposal should go on with the conduct of a worldwide prospective study that should allow to validate or to invalidate the prognostic value of factors potentially interesting but whose independent reproducible value has to be demonstrated.