Publications by authors named "Motochika Yasaka"

Background And Study Aims: The authors have successfully demonstrated that the white opaque substance (WOS) identified in gastric epithelial neoplasms is an accumulation of minute lipid droplets on the epithelial neoplasm. It is not known whether the lipid droplets originate from externally ingested lipids (typically foods). The purpose of this study was to investigate whether the oral ingestion of foods containing emulsified fats increases the density of the WOS in epithelial neoplasms.

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Article Synopsis
  • A man in his 60s with a history of ulcerative colitis (UC) was found to have a deep ulcer at the end of the ileum after being in clinical remission.
  • The patient also displayed moderate active UC symptoms in the rectum.
  • Treatment with azathioprine and infliximab (IFX) was initiated, leading to successful scarring of the ulcer, highlighting a rare instance of a simple ulcer associated with UC and the effectiveness of IFX.
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Background: Magnifying endoscopy (ME) with narrow-band imaging (NBI) may allow reliable delineation of the horizontal extent of early gastric cancers before endoscopic submucosal dissection (ESD). However, the advantages of ME with NBI over standard endoscopy with dye spraying (chromoendoscopy [CE]) have yet to be elucidated.

Objective: To investigate the usefulness and limitations of ME with NBI when CE is unsuccessful for determining the horizontal extent of early gastric cancer.

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