title: Can narrow-band imaging be used to determine the surgical margin of superficial hypopharyngeal cancer?
abstract: Narrow-band imaging (NBI) is a novel optical technique that uses narrow bandwidth filters in a video endoscope system to improve the diagnostic capability of endoscopes in characterizing tissues. It is well known that early identification of neoplasia in the gastrointestinal tract using this technique might make it possible to reduce the suffering of patients caused by loss of function or severe complications after radical surgery. Several reports have introduced this system as a preoperative examination to evaluate the lateral spread of the neoplastic lesions in the oropharynx or hypopharynx. We experienced a case with hypopharyngeal cancer in which we were able to avoid underestimating cancer lesions following insufficient resection using the NBI system. A 62-year-old female underwent partial hypopharyngectomy with the margin estimated by an NBI view coupled with reconstruction of the hypopharynx while preserving the larynx. The resected specimen was cut into serial sections for a detailed pathology examination. The surgical margin seemed to be wide enough and it could be assumed that if possible we should observe these cancers with conventional electroendoscopy and NBI before treatment.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Okayama Saiseikai General Hospital, Okayama 700-8511, Japan. yorihisaorita@hotmail.com
authors.forename: Yorihisa
authors.initials: Y
authors.lastname: Orita
authors.forename: Kazuyoshi
authors.initials: K
authors.lastname: Kawabata
authors.forename: Hiroki
authors.initials: H
authors.lastname: Mitani
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Fukushima
authors.forename: Shiro
authors.initials: S
authors.lastname: Tanaka
authors.forename: Seiichi
authors.initials: S
authors.lastname: Yoshimoto
authors.forename: Noriko
authors.initials: N
authors.lastname: Yamamoto
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000601:surgery*; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D007012:Hypopharyngeal Neoplasms / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D014741:Video Recording / Q000379:methods*