Colorectal adenoma
Colorectal adenoma (pronunciation: /ˌkoʊləˈrɛktəl ædəˈnoʊmə/) is a type of polyp that is found in the colon or rectum. Colorectal adenomas are considered precancerous conditions, as they can develop into colorectal cancer if left untreated.
Etymology
The term "colorectal adenoma" is derived from the Greek words "kolon" (colon), "rectum" (rectum), and "adenoma" (glandular tumor).
Types of Colorectal Adenomas
There are three main types of colorectal adenomas: tubular adenomas, villous adenomas, and tubulovillous adenomas.
- Tubular adenoma is the most common type of colorectal adenoma. It is usually small and has a lower risk of becoming cancerous.
- Villous adenoma is less common but more likely to become cancerous. It is usually larger and has a villous or "finger-like" appearance.
- Tubulovillous adenoma is a mix of tubular and villous adenoma. It has a moderate risk of becoming cancerous.
Symptoms
Most colorectal adenomas do not cause symptoms. However, if symptoms do occur, they may include rectal bleeding, changes in bowel habits, or abdominal pain.
Diagnosis
Colorectal adenomas are usually found during a colonoscopy or sigmoidoscopy. If an adenoma is found, it is usually removed and sent to a lab for biopsy to determine if it is cancerous.
Treatment
The primary treatment for colorectal adenomas is removal during a colonoscopy or sigmoidoscopy. If the adenoma is too large to be removed during these procedures, surgery may be required.
Prevention
Regular screening with a colonoscopy or sigmoidoscopy can help detect colorectal adenomas before they become cancerous. Lifestyle changes, such as eating a healthy diet, regular exercise, and avoiding tobacco and excessive alcohol, can also reduce the risk of developing colorectal adenomas.
See Also
External links
- Medical encyclopedia article on Colorectal adenoma
- Wikipedia's article - Colorectal adenoma
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