Usually a non-cancerous growth or tumour protruding from the lining of an organ, such as the colon. Left untreated, polyps have an increased risk of becoming cancerous.

Condition of the tissue, such as a polyp, that may become cancerous if left untreated.

Pertaining to tissue that is not yet malignant, but is poised to become malignant.

Where the cancer started - the type of body cell which first became cancerous e.g. colon, bowel.