Tissue retractor system–assisted endoscopic submucosal dissection of a large rectal tumor with significant fibrosis from?direct tattooing

摘要

Endoscopic tattooing directly into large dysplastic lesions is often performed for lesion identification before EMR or endoscopic submucosal dissection (ESD). Several case reports have demonstrated the difficulty of attempting endoscopic resection of previously tattooed lesions, primarily because of tattoo-induced submucosal fibrosis.