Endoscopic Diagnosis of the Invasion Depth of T1 Colorectal Carcinoma for Endoscopic Resection by Using Narrow-Band Imaging Magnification as Total Excisional Biopsy

Digestion ◽  
2016 ◽  
Vol 94 (2) ◽  
pp. 106-113 ◽  
Author(s):  
Makoto Sanomura ◽  
Shinji Tanaka ◽  
Yuichi Sasaki ◽  
Shinya Fukunishi ◽  
Kazuhide Higuchi
Keyword(s):  
Colorectal Carcinoma ◽  
Endoscopic Resection ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Excisional Biopsy ◽  
Endoscopic Diagnosis ◽  
Invasion Depth ◽  
T1 Colorectal Carcinoma

A Case of Esophageal Xanthoma with Epithelial Reactive Inflammation with a Characteristic Finding of Narrow-Band Imaging Magnifying Endoscopy

2019 ◽  
Vol 38 (1) ◽  
pp. 85-88
Author(s):  
Hideki Mori ◽  
Motohiko Kato ◽  
Toshio Uraoka
Keyword(s):  
Biopsy Specimen ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Basal Layer ◽  
Excisional Biopsy ◽  
Magnifying Endoscopy ◽  
Thoracic Esophagus ◽  
Characteristic Finding ◽  
Capillary Loop ◽  
White Substance

A 75-year-old woman had a 5 mm slightly elevated yellowish lesion in her thoracic esophagus. Narrow-band imaging magnifying endoscopy (NBI-ME) revealed aggregations of a tiny white substance beneath each intrapapillary capillary loop with weaving, dilatation, and a different shape. In this case, an irregular caliber was absent. The biopsy specimen taken from the lesion showed cells with large nuclei and increased chromatin clumping in the basal layer. These cells were positive for p53. Endoscopic submucosal dissection was performed for the purpose of excisional biopsy. Finally, it was diagnosed as an esophageal xanthoma with a benign epithelial reactive inflammation. This is the first report of esophageal xanthoma showing the characteristic NBI-ME finding of esophageal xanthoma. Further studies are required to determine whether the characteristic finding of NBI-ME is generally found in esophageal xanthomas.

scholarly journals Magnification endoscopy in combination with acetic acid enhancement and narrow-band imaging for the accurate diagnosis of colonic neoplasms

2020 ◽  
Vol 08 (04) ◽  
pp. E488-E497
Author(s):  
Kotaro Shibagaki ◽  
Norihisa Ishimura ◽  
Takafumi Yuki ◽  
Hideaki Taniguchi ◽  
Masahito Aimi ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Diagnostic Accuracy ◽  
Endoscopic Resection ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colonic Neoplasms ◽  
High Accuracy ◽  
Colorectal Polyps ◽  
Histologic Diagnosis ◽  
Magnification Endoscopy

Abstract Background and study aims Magnification endoscopy with narrow-band imaging (NBIME) and NBIME with acetic acid enhancement (A-NBIME) enable visualization of the vascular and microstructural patterns of colorectal polyp. We compared the diagnostic accuracy and reproducibility of white light endoscopy (WLE), NBIME, and A-NBIME for predictive histologic diagnosis. Patients and methods Consecutive colorectal polyps (N = 628; 38 hyperplasias, 488 adenomas, 72 M-SM1 cancers, and 30 SM2 cancers) were photographed with WLE, NBIME, and A-NBIME. Endoscopic images were independently reviewed by three experts, according to the traditional criteria for WLE, the Japan NBI Expert Team classification for NBIME, and pit pattern classification for A-NBIME to compare diagnostic accuracy and interobserver diagnostic agreement among modalities. Results The specificity (95 % confidence interval) of hyperplasia and SM2 cancer with WLE were 98.2 % (96.8 %–99.1%) and 99.4 % (98.5 %–99.9 %), respectively, showing high accuracy for endoscopic resection without magnifying observation. Diagnostic accuracy of WLE, NBIME, and A-NBIME was 80.8 % (77.4 %–83.8 %), 79.3 % (75.9 %–82.4 %), and 86.1 % (83.2 %–88.7 %), respectively, showing the highest accuracy for A-NBIME among modalities (P < .05). NBIME showed a lower PPV for M-SM1 cancer (P < .05), as with WLE (P = .08) compared to A-NBIME. Fleiss’s kappa values for WLE, NBIME, and A-NBIME diagnosis were 0.43 (0.39 – 0.46), 0.52 (0.49 – 0.56) and 0.65 (0.62 – 0.69), respectively, showing insufficient reproducibility of WLE and superiority of A-NBIME among modalities. Conclusion WLE showed high accuracy for endoscopic resection of colorectal polyps in expert diagnosis. NBIME demonstrated a higher diagnostic reproducibility than WLE. A-NBIME showed possible superiority among modalities in both diagnostic accuracy and reproducibility.

scholarly journals Additional effect of magnifying narrow‐band imaging on estimating the invasion depth of superficial esophageal cancer

JGH Open ◽  
2020 ◽  
Vol 4 (2) ◽  
pp. 178-184 ◽  
Author(s):  
Minoru Kato ◽  
Yoshito Hayashi ◽  
Ryotaro Uema ◽  
Keiichi Kimura ◽  
Takanori Inoue ◽  
...  
Keyword(s):  
Esophageal Cancer ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Invasion Depth ◽  
Superficial Esophageal Cancer

Validation of a Simple Classification System for Endoscopic Diagnosis of Small Colorectal Polyps Using Narrow-Band Imaging

2012 ◽  
Vol 143 (3) ◽  
pp. 599-607.e1 ◽  
Author(s):  
David G. Hewett ◽  
Tonya Kaltenbach ◽  
Yasushi Sano ◽  
Shinji Tanaka ◽  
Brian P. Saunders ◽  
...  
Keyword(s):  
Classification System ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colorectal Polyps ◽  
Endoscopic Diagnosis ◽  
Simple Classification
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