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Characteristics and Differential Diagnosis of Oropharyngeal or Hypopharyngeal Superficial Cancer from the Otolaryngological Point of View Akihito Watanabe 1 , Masanobu Taniguchi 1 1Department of Otolaryngology-head and Neck Surgery, Keiyukai Sapporo Hospital, Sapporo, Japan Keyword: 咽頭表在癌 , NBI , 咽喉頭用内視鏡 , 鑑別診断 , 経鼻内視鏡 pp.349-359
Published Date 2012/3/25
DOI https://doi.org/10.11477/mf.1403113125
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 Recent advances in endoscope technology including NBI(narrow band imaging)have increased the ability to detect oropharyngeal or hypopharyngeal superficial carcinoma, which lesion had been difficult to observe by routine examinations. There are two important characteristics in the appearance of oropharyngeal or hypopharyngeal superficial cancer by NBI observation. One is“well demarcated brownish area”, and the other is“irregular microvascular pattern”. Laryngopharyngoscopy, which enables us to find these two characteristics under NBI observation, is enough for screening of oropharyngeal or hypopharyngeal superficial cancers. The lesions which require differential diagnosis from superficial carcinoma include low grade intraepitherial neoplasia, glycogenic acanthosis and squamous papilloma in the oropharynx and hypopharynx.


Copyright © 2012, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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