Page History

...

AJCC has defined prefix designators that may be used to indicate the different points in time that staging may be determined. For example, staging may be determined before any treatment (clinical stage) or after surgery (pathologic stage). As described in the AJCC V7 Cancer Staging Manual, the prefix/suffix of c, p, yc, yp, m, r, or a may be applied. For example, the classification the classification of T, N, and M by pathologic means is denoted by use of a lower-case p prefix (pTe.g., pT, pN, pM). The c prefix is not generally used, but rather assumed, when just TNM is stated. A complete description of and definitions for these prefixes/suffixes are included in the AJCC V7 Manual.  

The m suffix and y, r, and a prefixes indicate the following:

...

RSTESTCD = "AJCC105" RSTEST = "AJCC1-Residual Tumor (R)"

End of Document