The Usefulness of an Intra-Oropharyngeal U-turn Method using Trans-Nasal Endoscopy for Detecting Superficial Squamous Cell Carcinoma of the Base of the Tongue

Kawada, Kenro; Kawano, Tatsuyuki; Okada, Takuya; Yamaguchi, Kazuya; Kawamura, Yuudai; Matsui, Toshihiro; Okuda, Masafumi; Ogo, Taichi; Kume, Yuichiro; Nakajima, Yoshiki; Mora, Andres; Hoshino, Akihiro; Tokairin, Yutaka; Nakajima, Yasuaki; Okada, Ryuhei; Kiyokawa, Yusuke; Nomura, Fuminori; Ariizumi, Yosuke; Sugimoto, Taro; Asakage, Takahiro; Ito, Takashi

doi:10.15406/joentr.2017.08.00240

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2017

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“…Previous efforts to detect such cancers using trans-oral endoscopy have failed. In addition, we were never able to detect early cancers located at base of tongue in the past, but since implementing the intraoropharyngeal U-turn method, we have detected more than 10 cases [15].…”

Section: Resultsmentioning

confidence: 88%

Observation of the Pharynx to the Cervical Esophagus Using Trans-nasal Endoscopy with Image-enhanced Endoscopy for Early Detection of Head and Neck Cancers

Kawada¹,

Okada²,

Sugimoto³

et al. 2017

J Gastrointest Dig Syst

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Introduction: We started endoscopic treatment for superficial pharyngeal cancer in 1996, and thus far, 97 lesions of 77 cases of superficial head and neck cancer have been detected using trans-oral endoscopy. However, some areas are difficult to observe with trans-oral endoscopy because of the gag reflex. We have therefore applied transnasal endoscopy for observing of the pharynx to the cervical esophagus.

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Section: Resultsmentioning

confidence: 88%