頭頸部領域における内視鏡観察のコツ

DOI 被引用文献1件 参考文献20件

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  • EFFECTIVENESS OF NBI GUIDED ENDOSCOPIC SCREENING IN HEAD AND NECK REGIONS

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Many patients with cancers of oral cavity, oropharynx, hypopharynx and larynx have been diagnosed at an advanced stage because the clinical symptom is often obscure. Although the endoscopists guide the endoscopy through oral and laryngopharyngeal regions at the time of upper digestive endoscopy examination, it has been difficult to detect superficial squamous cell carcinoma. Narrow band imaging (NBI), combined with magnified observation, clearly enhances the microvascular structure of the mucosal surface. NBI is a promising and potentially powerful tool for identifying early stage carcinomas during a routine endoscopic examination. Recently, effectiveness of NBI for detection of the superficial squamous cell carcinoma in the oral cavity, oropharynx and hypopharynx has been reported. Screening utilizing NBI combined with magnified observation may make it possible to reduce the number of patients who have to lose their speaking and swallowing function following a radical surgery. If more early stage cancers can be detected by this screen, the prognosis of oral and laryngopharyngeal cancers might be improved in the near future. We describe herein the tip of conducting proper screening using NBI combined with magnified observation. We also present three cases showing typical images under NBI endoscope to help the better understanding of this new field.

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