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Monday, June 26, 2017
In stage 0, abnormal cells are found in the epidermis (topmost layer of the skin). These abnormal cells may become cancer and spread into nearby normal tissue. Stage 0 is also called carcinoma in situ.
Stage I is divided into stages IA, IB, and IC.
In stage II, one of the following is true:
Stage III is divided into stages IIIA, IIIB, and IIIC.
The tumor has spread to distant parts of the body.
Adapted from the National Cancer Institute's Physician Data Query (PDQ(r)) Cancer Information Summaries (http://www.cancer.gov/
Last Reviewed: Mar 26, 2015