Gastrointestinal Pathology · Pathology

What is the significance of 'Intramucosal Carcinoma' in the colon compared to the stomach?

  1. It has a high risk of metastasis in the colon
  2. It has negligible metastatic potential in the colon
  3. It is more aggressive in the colon
  4. It is not a recognized pathological entity in the colon at all
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Correct answer: It has negligible metastatic potential in the colon

Unlike the stomach, the colonic mucosa lacks lymphatic channels. Therefore, a tumor limited to the mucosa (intramucosal) in the colon essentially has no risk of metastasis; it must invade the muscularis mucosae to be considered invasive cancer.

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