Questions About Cancer? 1-800-4-CANCER
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Colon Cancer Treatment (PDQ®)

Cellular Classification of Colon Cancer

Histologic types of colon cancer include the following:

  • Adenocarcinoma (most colon cancers).
    • Mucinous (colloid) adenocarcinoma.
    • Signet ring adenocarcinoma.
  • Scirrhous tumors.
  • Neuroendocrine.[1] Tumors with neuroendocrine differentiation typically have a poorer prognosis than pure adenocarcinoma variants.


  1. Saclarides TJ, Szeluga D, Staren ED: Neuroendocrine cancers of the colon and rectum. Results of a ten-year experience. Dis Colon Rectum 37 (7): 635-42, 1994. [PUBMED Abstract]
  • Updated: March 24, 2015