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Medical Term Ch 5
Integumentary System - TNM System of Staging
Question | Answer |
---|---|
Tumor T0 | No evidence of tumor |
Tumor Tis = Stage I | Carcinoma in situ indicates the tumor is in a defined location and shows no invasion into surrounding tissues. |
Tumor T1, T2, T3, T4 = Stage II | Primary tumor size and extent of local invasion, where TI is small with minimal invasion and T4 is large with extensive invasion into surrounding organs. |
Node N0 | Regional lymph nodes show no abnormalities. |
Node N1, N2, N3, N4 = Stage III | Degree of lymph node involvement and spread to regional lymph nodes, where N1 is less involvement with minimal spreading and N4 is more involvement with extensive spreading. |
Metastasis M0 | No evidence of metastasis |
M1 = Stage IV | Indicates metastasis |