What Causes Thickening of the Colon Wall?
Sep 02, 2022
Source: Cainiu Health
Dr. Zhao Haiming
Introduction
Colonic wall thickening may result from colitis, where inflammatory stimulation leads to abnormal cellular proliferation. It can also occur due to colonic polyps; as polyps enlarge, they mechanically irritate the colonic wall, causing edema and thickening. Another possible cause is congenital megacolon, typically arising from abnormal cellular development during embryogenesis. Additionally, colonic tumors—often characterized by uncontrolled tumor cell proliferation—can also induce colonic wall thickening.
Colonic wall thickening may be caused by factors such as colitis, colonic polyps, or Hirschsprung's disease.
1. Colitis
Colonic wall thickening can occur in colitis. After stimulation by inflammation, the mucosal layer of the intestinal wall may develop severe congestion and edema, leading to abnormal cell proliferation. Patients may also experience symptoms such as diarrhea, nausea, and vomiting.
2. Colonic Polyps
If a patient has colonic polyps, as the size of the polyp increases, it may stimulate the colon wall, causing edema and thickening of the colonic wall. Patients may experience intermittent rectal bleeding, constipation, or prolapse of the polyp.
3. Hirschsprung's Disease
Colonic wall thickening may also result from Hirschsprung's disease, which is usually due to abnormal development of nerve cells during embryogenesis, leading to compensatory enlargement of the bowel or thickening of the colonic wall. Patients often have associated symptoms such as vomiting, constipation, and delayed passage of stool.
In addition, colonic wall thickening can also be caused by colorectal tumors.
