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Stage I colorectal cancer
Pronunciation
Definition 1
Cancer has spread from the mucosa (innermost layer) of the colon and/or rectal wall to the submucosa (layer of tissue under the mucosa) of the colon and/or rectal wall. Cancer may have spread to the muscle layer of the colon and/or rectal wall. Also called Dukes A colorectal cancer. (NCI Dictionary)
Definition 2
Stage I includes: (T1, N0, M0); (T2, N0, M0). T1: Tumor invades submucosa. T2: Tumor invades muscularis propria. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 6th and 7th eds.) (NCI Thesaurus)
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