Unroofing of subepithelial lesions in the upper gastrointestinal tract using cold snare: an easy and efficient technique for diagnosis.

This article, published in Clinical Endoscopy, discusses a technique called "unroofing" for diagnosing subepithelial lesions (SELs) in the upper gastrointestinal tract. SELs are tumors that can be neoplastic or non-neoplastic and are commonly found incidentally during gastric endoscopy. The article describes a modified technique using a cold snare to expose the SELs, allowing for easier tissue sampling with a standard forceps biopsy. The authors conducted a retrospective analysis of 20 cases using this technique and found it to be safe and efficient. Further studies are needed to evaluate its reliability for diagnosing SELs arising from the deeper layers of the gastrointestinal tract. [Extracted from the article]