Endoscopic Mucosal Resection

**Semantic type:** Therapeutic or Preventive Procedure

**Definition:** An endoscopic procedure that visualizes a part of the gastrointestinal tract to first identify and demarcate superficial mucosal lesions, then to guide a submucosal injection to the site to lift the lesion and finally to aid in the removal of the lesion.

**Synonyms:** - EMR - Endoscopic Mucosal Resection (EMR)