Preparation: The patient undergoes bowel preparation and fasting to clear the GI tract. Insertion: An endoscope is inserted through the mouth or anus, depending on the location of the lesion. Injection: A solution is injected beneath the lesion to lift it from the underlying tissue, creating a cushion and reducing the risk of perforation. Resection: Specialized instruments are used to snare and cut the lifted lesion, which is then retrieved for pathological examination.
