Oral Cancer: Stages

The stage of oral cancer is one of the most important factors in evaluating treatment options. A stage 0 oral cancer tumor means the cancer is only growing in the epithelium which is the outermost layer of tissue in the oral cavity. A stage I oral cancer tumor means the primary tumor is 2 cm across or smaller and no cancer cells are present in nearby structures, lymph nodes or distant sites. A stage II oral tumor measures 2–4 cm across and no cancer cells are present in nearby structures, lymph nodes or distant sites. The oral tumor is larger than 4 cm across and no cancer cells are present in nearby structures, lymph nodes or distant sites is stage III. Stage IV is the tumor has invaded deeper areas and/or tissues. It may or may not have spread to lymph nodes and has not spread to distant sites. Recurrent or relapsed disease means that the cancer has returned after treatment. Recurrent disease does not have a TNM classification or a staging system number. TNM system is a commonly accepted method based on three key components Tumor, Node and Metastasis.   

  • Stage I oral cancer
  • Stage II oral cancer
  • Stage III oral cancer
  • Stage IV oral cancer
  • Recurrent
  • TNM stages

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