MKI67 and colorectal cancer: GPT-4 demonstrated high accuracy in extracting data from colorectal cancer reports, achieving 99% accuracy for T-stage, 95% for N-stage, 94% for M-stage, and 98-99% for lymph node data. In neuropathology reports, it also performed exceptionally well, accurately extracting key variables such as the Ki-67 labeling index and ATRX expression with near-perfect precision.