Residual Tumor Classification

While TNM and pTNM describe the anatomical spread of the tumor without considering the therapy, the residual tumor classification (R classification) provides information about the tumor status after treatment. It reflects the effects of the therapy and influences the further therapeutic procedure.Die definition:- R-0: no detectable residual tumor after therapy,
- R-1: microscopic residual tumor after therapy,
- R-2: macroscopic residual tumor after therapy.Die R-Classification is only possible in close cooperation with clinicians and pathologists.