Narrow band imaging endoscopy for unknown primary tumor sites of the neck

Background Examinations used to search for unknown primary tumors of squamous cell carcinomas of the neck include CT, MRI, laryngoscopy, gastrointestinal endoscopy, and positron‐emission tomography (PET). Narrow band imaging (NBI) endoscopy in which an optical color‐separation filter is used to narr...

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Bibliographic Details
Published in:Head & neck 2012-06, Vol.34 (6), p.826-829
Main Authors: Shinozaki, Takeshi, Hayashi, Ryuichi, Ebihara, Mitsuru, Miyazaki, Masakazu, Daiko, Hiroyuki, Saikawa, Masahisa, Ebihara, Satoshi
Format: Article
Language:English
Subjects:
Adult
Aged
Biological and medical sciences
Biopsy, Fine-Needle
Carcinoma, Squamous Cell - pathology
Endoscopy - methods
Female
Head and Neck Neoplasms - pathology
Humans
Image Enhancement
less invasive examination
Lymphatic Metastasis
Male
Medical sciences
Middle Aged
narrow band imaging
Neoplasms, Unknown Primary - pathology
Otorhinolaryngology. Stomatology
Positron-Emission Tomography
sensitivity for detecting
unknown primary tumor
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Summary:Background Examinations used to search for unknown primary tumors of squamous cell carcinomas of the neck include CT, MRI, laryngoscopy, gastrointestinal endoscopy, and positron‐emission tomography (PET). Narrow band imaging (NBI) endoscopy in which an optical color‐separation filter is used to narrow the bandwidth of spectral transmittance is also used. Methods Twenty‐eight patients in whom primary squamous cell carcinomas could not be detected with conventional white light laryngoscopy underwent NBI endoscopy and PET. Results Primary lesions were detected with NBI endoscopy in 3 patients, but no primary lesions were detected with PET. However, PET was used to detect a lower gingival cancer and a palatine tonsillar cancer. Conclusion Both PET and NBI endoscopy is effective for detecting unknown primary tumors of squamous cell carcinomas of the neck. © 2011 Wiley Periodicals, Inc. Head Neck, 2011
ISSN:1043-3074
1097-0347
DOI:10.1002/hed.21825