screening colonoscopy
Preventive endoscopic examination of the entire colon performed in asymptomatic individuals to detect and remove colorectal cancer and precancerous polyps.
Full Definition
Screening colonoscopy is considered the gold standard for colorectal cancer prevention, allowing direct visualization of the entire colon and immediate removal of detected polyps during the procedure. This examination is typically recommended every 10 years for average-risk individuals beginning at age 45-50, depending on guidelines. The procedure requires thorough bowel preparation and conscious sedation, performed by trained gastroenterologists or surgeons. Screening colonoscopy serves both diagnostic and therapeutic functions, with the ability to prevent cancer through polypectomy and detect early-stage cancers when treatment is most effective.
Usage
Usage note: Distinguish from diagnostic or surveillance colonoscopy for billing and documentation purposes.
In Context
- "The patient's first screening colonoscopy at age 50 revealed two adenomatous polyps that were removed during the procedure." — Procedure report
- "Insurance coverage for screening colonoscopy includes the procedure and anesthesia with no patient cost-sharing." — Benefits explanation