sigmoidoscopy
Học thuậtThân thiện
Definition
- Noun:
- A medical procedure that involves the visual examination of the sigmoid colon and the rectum using a flexible, lighted tube called a sigmoidoscope. It is primarily performed to screen for or diagnose abnormalities such as polyps, inflammation, or cancer in the lower part of the large intestine.
Usage Examples
- Noun:
- The doctor recommended a sigmoidoscopy to investigate the cause of the patient's rectal bleeding.
- A routine sigmoidoscopy can help detect colorectal cancer at an early, treatable stage.
- During the sigmoidoscopy, a small polyp was found and removed.
Advanced Usage
- "to undergo a sigmoidoscopy": to have the procedure performed on oneself.
- Patients over 50 are often advised to undergo a sigmoidoscopy every five years.
- "sigmoidoscopy findings": the results or observations made during the procedure.
- The sigmoidoscopy findings were normal, showing no signs of disease.
Variants and Related Words
- Sigmoidoscope (n): The instrument used to perform a sigmoidoscopy.
- The sigmoidoscope is inserted into the rectum to allow the doctor to see the intestinal lining.
- Colonoscopy (n): A similar but more extensive procedure that examines the entire colon.
- A colonoscopy provides a more complete view of the large intestine than a sigmoidoscopy.
Synonyms
- Lower endoscopy: A general term for endoscopic examination of the lower gastrointestinal tract.
- Flexible sigmoidoscopy: The full, precise name for the common type of this procedure.
Related Phrases
- Screening sigmoidoscopy: A sigmoidoscopy performed as a preventive health check in individuals without symptoms.
- Screening sigmoidoscopy is a common tool for colorectal cancer prevention.
- Diagnostic sigmoidoscopy: A sigmoidoscopy performed to investigate specific symptoms like pain or bleeding.
- He had a diagnostic sigmoidoscopy to determine the cause of his persistent abdominal discomfort.
Noun
- visual examination (with a sigmoidoscope) of the lower third of the colon in a search for polyps