Endoscopic submucosal dissection for anal intraepithelial neoplasia

A 68-year-old woman was found to have a 20-mm superficial lesion at the dentate line (Fig. 1). Narrow band imaging (NBI) revealed a well-demarcated area with irregular intrapapillary capillary loops, similar to the findings seen in esophageal superficial squamous cell carcinoma [1]. Endoscopic biopsy revealed a high-grade squamous intraepithelial lesion (HSIL). After delineating the lesion unde...

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Endoscopic gastric submucosal dissection in low-grade intraepithelial neoplasia.

Endoscopic mucosal resection (EMR) was developed for the purpose of preserving complete gastrointestinal function after the resection of a lesion limited to the mucosa of the digestive tract, as well as for obtaining larger specimens that would enable a precise histopathologic diagnosis. In Japan, different techniques were developed for EMR that were divided into three modalities: EMR with a do...

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SCIENTIFIC LETTERS Endoscopic gastric submucosal dissection in low-grade intraepithelial neoplasia

Endoscopic mucosal resection (EMR) was developed for the purpose of preserving complete gastrointestinal function after the resection of a lesion limited to the mucosa of the digestive tract, as well as for obtaining larger specimens that would enable a precise histopathologic diagnosis. In Japan, different techniques were developed for EMR that were divided into three modalities: EMR with a do...

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SCIENTIFIC LETTERS Endoscopic gastric submucosal dissection in low-grade intraepithelial neoplasia

Endoscopic mucosal resection (EMR) was developed for the purpose of preserving complete gastrointestinal function after the resection of a lesion limited to the mucosa of the digestive tract, as well as for obtaining larger specimens that would enable a precise histopathologic diagnosis. In Japan, different techniques were developed for EMR that were divided into three modalities: EMR with a do...

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