Labels:book | bulletin board | dialog box | monitor | poster | window OCR: TNM DEFINITIONS Primary Tumor TI Tumor invades mucosa or muscle layer T2 Tumor invades periductal tissue Tumor invades adjacent structures Regional Lymph Nodes NO No regional lymph node metastasis Metastasis in regional lymph nodes Metastasis MO No distant metastasis M1 Distant metastasis Stage Grouping Stage T1, NO, MO Stage T2, NO, MO Stage III T. N1, N1, MO MO Stage IVa T3 NO-1, MO Stage IVb T1-3, N0-1,M1 laver
