Dictionary of Cancer Terms
View in Spanish: Carcinoma del ano in situ, estadio 0
Stage 0 anal carcinoma in situ ( AY-nul KAR-sih-NOH-muh in SY-too)
Abnormal cells are found in the innermost lining of the anus. These abnormal cells may become cancer and spread into nearby normal tissue.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.