At a glance: EMR is an endoscopic technique used to remove selected larger or flatter lesions while avoiding conventional surgery in suitable patients.
Endoscopic mucosal resection is a technique used to remove selected larger or flatter lesions from the lining of the gastrointestinal tract. It can often avoid conventional surgery while still allowing the tissue to be examined by a pathologist.
When EMR may be used
EMR is commonly used for selected polyps or early lesions in the colon and, less commonly, other parts of the gastrointestinal tract. Suitability depends on the lesion’s size, location and appearance.
What happens during the procedure
The lesion is lifted from the deeper bowel wall and removed using an endoscopic snare. Larger lesions may need to be removed in several pieces. Clips or other methods may be used to reduce the risk of bleeding or close the treatment site.
After EMR
You will receive specific instructions about diet, medicines and warning symptoms. The pathology result determines whether further treatment or surveillance is needed.
Risks
Important risks include bleeding, perforation, post-procedure pain and incomplete removal or recurrence. Your endoscopist will discuss risks relevant to your procedure.
For assessment of a complex polyp or lesion, use our referral and booking page.
Frequently asked questions
Is EMR surgery?
No. It is performed through an endoscope without an external incision, although it carries procedure-specific risks.
Will the lesion be tested?
Yes. Removed tissue is sent to pathology to determine its type and whether further treatment is needed.
Will I need follow-up?
Often yes, particularly after removal of a large lesion or removal in several pieces.
After your procedure
Follow the written discharge instructions supplied for your procedure. Contact the clinic or seek urgent care for severe or increasing pain, heavy bleeding, fever, persistent vomiting, breathing difficulty, fainting or other concerning symptoms.
Book or refer
For appointments or referral information, visit our endoscopy referral and booking page.