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Endoscopic diagnosis of laryngeal cancer and precancerous lesions by narrow band imaging

Published online by Cambridge University Press:  08 November 2010

X-G Ni ,
S He ,
Z-G Xu ,
L Gao ,
N Lu ,
Z Yuan ,
S-Q Lai ,
Y-M Zhang ,
J-L Yi  and
X-L Wang
...Show all authors
X-G Ni
Affiliation:
Department of Endoscopy, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
S He
Affiliation:
Department of Endoscopy, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
Z-G Xu
Affiliation:
Department of Head and Neck Surgery, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
L Gao
Affiliation:
Department of Radiation Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
N Lu
Affiliation:
Department of Pathology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
Z Yuan
Affiliation:
Department of Pathology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
S-Q Lai
Affiliation:
Department of Endoscopy, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
Y-M Zhang
Affiliation:
Department of Endoscopy, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
J-L Yi
Affiliation:
Department of Radiation Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
X-L Wang
Affiliation:
Department of Head and Neck Surgery, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
L Zhang
Affiliation:
Department of Endoscopy, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
X-Y Li
Affiliation:
Department of Endoscopy, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
G-Q Wang*
Affiliation:
Department of Endoscopy, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
*
Address for correspondence: Dr Gui-Qi Wang, Department of Endoscopy, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, 17 Panjiayuan Nanli, Chaoyang District, PO Box 2258, Beijing 100021, PR China Fax: 0086 10 87711782 E-mail: wangguiq@126.com
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Abstract

Objective:

To investigate the characteristics of the laryngeal mucosal microvascular network in suspected laryngeal cancer patients, using narrow band imaging, and to evaluate the value of narrow band imaging endoscopy in the early diagnosis of laryngeal precancerous and cancerous lesions.

Patients and methods:

Eighty-five consecutive patients with suspected precancerous or cancerous laryngeal lesions were enrolled in the study. Endoscopic narrow band imaging findings were classified into five types (I to V) according to the features of the mucosal intraepithelial papillary capillary loops assessed.

Results:

A total of 104 lesions (45 malignancies and 59 nonmalignancies) was detected under white light and narrow band imaging modes. The sensitivity and specificity of narrow band imaging in detecting malignant lesions were 88.9 and 93.2 per cent, respectively. The intraepithelial papillary capillary loop classification, as determined by narrow band imaging, was closely associated with the laryngeal lesions' histological findings. Type I to IV lesions were considered nonmalignant and type V lesions malignant. For type Va lesions, the sensitivity and specificity of narrow band imaging in detecting severe dysplasia or carcinoma in situ were 100 and 79.5 per cent, respectively. In patients with type Vb and Vc lesions, the sensitivity and specificity of narrow band imaging in detecting invasive carcinoma were 83.8 and 100 per cent, respectively.

Conclusion:

Narrow band imaging is a promising approach enabling in vivo differentiation of nonmalignant from malignant laryngeal lesions by evaluating the morphology of mucosal capillaries. These results suggest endoscopic narrow band imaging may be useful in the early detection of laryngeal cancer and precancerous lesions.

Keywords

Laryngeal CancerEarly DiagnosisLaryngoscopyNarrow Band Imaging
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 125 , Issue 3 , March 2011 , pp. 288 - 296
Copyright
Copyright © JLO (1984) Limited 2010

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