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Takashi Kawai, MD, PhD

Department of Gastroenterological Endoscopy

Tokyo Medical University Hospital

 

 

Procedure Information 1


Scope : GIF-1200N / EVIS X1

Case : Early gastric cancer (por2>sig>tub2, 0-IIc, pT1a(M), UL(-), ly0, v0)

Organ : From the angulus to the lesser curvature of the antrum

Patient Information : M, 50s

Medical History : H. pylori eliminated

WLI

NBI

Overall comment

Under white light, the lesion appeared to be depressed and had a clear boundary with the surrounding tissue. Patchy reddening and an irregular uneven surface suggested a diagnosis of gastric cancer. Narrow Band Imaging (NBI) clarified the demarcation lines and revealed patchy brownish areas. The lesion exhibited an irregular uneven micro-surface structure with a non-structural surface in the depression in the center of the lesion. Thanks to the Brightness Adjustment Imaging with Maintenance of Contrast (BAI-MAC) function, it was possible to clearly observe all the way to the margin of the lesion.

Procedure Information 2


Scope : GIF-1200N / CV290

Case : Early gastric cancer (tub1, 0-IIa+IIc, pT1a(M), ly0, v0)

Organ : Lesser curvature of the angulus

Patient Information : M, 70s

Medical History : H. pylori eliminated

WLI

NBI

Overall comment

Under white light, the lesion appeared to be depressed in the center and had a clear boundary with the surrounding tissue. Patchy reddening and uneven irregularity in the depression were recognized, leading to a diagnosis of gastric cancer. Narrow Band Imaging (NBI) brought the demarcation lines into clear view. The intervening parts were enlarged non-uniformly and irregular surface pattern was observed in the depression in the center of the lesion.

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