What is intramucosal carcinoma or carcinoma in situ or carcinoma in the lamina propria?
If an adenoma begins to progress toward colon cancer, these are the earliest changes but this early cancer does not yet have the ability to spread to other parts of the body and has probably been caught just in time. While an adenoma with intramucosal carcinoma or carcinoma in situ or carcinoma in the lamina propria needs to be completely removed, it is not the same thing as to what is typically referred to as colon cancer, since it cannot spread. Patients who have intramucosal carcinoma or carcinoma in situ or carcinoma in the lamina propria in their adenomas will need to have future colonoscopies at a shorter interval to make sure more polyps do not develop.