[Prognostic factors and predictive model of non-Hodgkin's lymphoma: pathological prognostic groupings and international prognostic index].

The non-Hodgkin's lymphomas are a diverse group of neoplasms, pathological prognostic groupings, based on survival, are essential to facilitate clinical comparisons of therapeutic trials. In addition, a model, based on important prognostic factors, is also necessary for predicting therapeutic outcome in patients with certain pathological prognostic group. In this paper, four models of pathological prognostic groupings, such as Working Formulation classification, National Cancer Institute classification, lymphoma clinico-pathologic(LCP) classification, and LCP schema, are reviewed for clinical usage. Comments on international prognostic index as a predictive model for aggressive lymphoma are described with its perspective for predictive capacity of therapeutic outcome.