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Updated: Feb 27, 2026

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Published on: October 16, 2013
The Role of Chromoendoscopy in Evaluating Colorectal Dysplasia
1Dr Buchner is an assistant professor of medicine in the Division of Gastroenterology at the University of Pennsylvania in Philadelphia, Pennsylvania.
Abstract:
Chromoendoscopy pertains to image-enhanced endoscopic techniques such as dye-based chromoendoscopy and electronic chromoendoscopy using narrow-band imaging, flexible spectral imaging color enhancement, and i-scan. Dye-based chromoendoscopy has been demonstrated to improve colorectal dysplasia detection in high-risk patients with long-term inflammatory bowel disease, and electronic chromoendoscopy techniques have been shown to improve characterization of diminutive colorectal lesions, allowing for optical diagnosis during a colonoscopy examination. This article reviews endoscopic imaging using chromoendoscopy techniques for colorectal dysplasia evaluation.
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