A pathology report stages a tumor as T₂,N₁,M_o.What is the meaning of this finding?

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The pathology report is using the TNM staging system, where T stands for tumor size and invasion, N stands for lymph node involvement, and M stands for distant metastasis. TS1 indicates a small tumor size, U1 indicates that invasion and extent of the tumor are uncertain. B12 and B11 indicate that there are lymph nodes involved, but there is only one involved in each region (B for regional lymph nodes). M1 indicates the presence of distant metastasis, but o means that the exact extent is uncertain. Therefore, the tumor has spread to surrounding lymph nodes (N1) but there is no distant metastasis (M0).

A Pathology Report Stages a Tumor as T2,N1,Mo

A Pathology Report Stages a Tumor as T₂,N₁,M_o