NCIt related terms : Stage 0 Colorectal (Colon or Rectal) Cancer;
NCIt definition : Stage 0 includes: Tis, N0, M0. Tis: Carcinoma in situ, intramucosal carcinoma (involvement
of lamina propria with no extension through muscularis mucosae). N0: No regional lymph
node metastasis. M0: No distant metastasis. (AJCC 8th ed.);