Early diagnosis and staging

This report reviews developments in the early diagnosis and staging of pros tate cancer and updated on the incidence of postate cancer to discuss the p ros and cons of population based screening. Refinements and reliability of various diagnosic procedures are described such as PSA testing, transrectal ultrasound, ratio beteen PSA-level and ultrasound measured prostate volume , rate of change of PSA-level, combination factor equations computed by neu ral network programs to predict likelihood of prostate cancer, artificial n eural network analysis of subvisual transrectal ultrasound information, mea surements of different PSA-forms of PSA (in particular percent free PSA), a nd glandular kallikrein 2.