Labels:book | bulletin board | dialog box | earth | poster | reckoner | sky | window OCR: PRIMARY TUMOR Minimum requirements to assess the primary tumor cannot be seen TO No evidence of primary tumor Tis Preinvasive carcinoma (carcinoma in situ) T Tumor invades into but not beyond the submucosa T2 Tumor invades into but not beyond the muscularis propria T3 Tumor invades into the adventitia T4 Tumor invades contiguous structures REGIONAI LYMPH NODES Cervical Esophagus (cervical and supraclavicular lymph nodes) NX Regional lymph nodes cannot be assessed NO No demonstrable metastasis to regional lymph nodes N1 Regional lymph nodes contain metastatic tumor Thoracic Esophagus (nodes in the thorax, not those of the cervical supraclavicular or abdominal areas NX Regional lymph nodes cannot be assessed NO No nodal involvement N1 Nodal involvement DISTANT METASTASIS MX Distant metastasi ...
