<prompt> Gleasons classification used forCarcinoma breastCarcinoma prostateCarcinoma pancreasCarcinoma rectum  <response>: Carcinoma Prostate 699- Basic robbins 8thGLEASON - SYSTEM - Gleason grade has proved to correlate reasonably well with both the anatomic stage of prostatic carcinoma and the prognosis Pancreatic cancer probably arise from precursor lesion Pan INs developing by a progressive accumulation of characteristic mutations of oncogenes eg K-RAS and tumor suppressor genes eg P16, P53 and SMA D4 Breast cancer - the majority are in the BRCA-1 and BRCA2 genes, less commonly in P53, PTEN or ATM genes 