Optical diagnosis of early colorectal cancer: riding the highs and lows of the Japanese Narrow-Band Imaging Expert Team classification

Recent initiatives in the optical diagnosis of colorectal polyps have the potential to improve our management of neoplasia found at colonoscopy. If endoscopists can predict histologic features with high accuracy, they could resect and discard diminutive adenomas without pathologic evaluation and save costs. They potentially could leave in situ diminutive hyperplastic polyps of the rectosigmoid colon that do not have malignant potential.1 They could ensure careful en bloc endoscopic resection for polyps with advanced pathologic features that have not deeply invaded the submucosa.

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