title: Histopathology as a prognostic indicator in tumors of childhood.
abstract: Because of their relative rarity and structural complexities, many of the solid tumors of children present formidable obstacles to the development of histopathological grading systems. However, the cooperative clinical trials now in progress in many nations provide a unique opportunity to overcome these difficulties. The results of the NWTS are briefly summarized as an illustration of the potential value of this approach.
mesh_terms: D002648:Child; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000473:pathology; D009369:Neoplasms / Q000175:diagnosis*; D011379:Prognosis; D009396:Wilms Tumor / Q000175:diagnosis* / Q000473:pathology