Narrow band imaging in the diagnosis of intra-epithelial and invasive laryngeal squamous cell carcinoma: A preliminary report of two cases

Masaki, Takashi; Katada, Chikatoshi; Nakayama, Meijin; Takeda, Masahiko; Miyamoto, Shunsuke; Seino, Yutomo; Koizumi, Wasaburo; Tanabe, Satoshi; Horiguchi, Satoshi; Okamoto, Makito

doi:10.1016/j.anl.2009.01.008

Cited by 26 publications

(25 citation statements)

References 8 publications

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“…protuberant or ulcerative lesions covered with necrotic tissue, or leukoplakia of unknown type); or (3) benign (types I to IV) (135). In the literature, there exist only a few publications on the exclusive use of NBI in laryngology (135)(136)(137)(138)(139)(140)(141)(142). However, several studies assessed the value of NBI in the head and neck also including the larynx (132,137,(143)(144)(145)(146)(147)(148).…”

Section: Narrow Band Imaging (Nbi)mentioning

confidence: 99%

“…The introduction of narrow band imaging (NBI, Olympus Medical System Corporation, Tokyo, Japan), already proven to be an useful screening method in other medical fields, has recently shown its potential in identifying carcinomas at an early stage in head and neck mucosal sites (136,139,239,240). The NBI filter sets (415 nm, which is the hemoglobin absorption band, and 540 nm) are selected to obtain fine images of microvascular structures of different types tissue, which are necessary for diagnosing a tumor at early stage.…”

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confidence: 99%

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Laryngeal preneoplastic lesions and cancer: challenging diagnosis. Qualitative literature review and meta-analysis.

Mannelli

Cecconi

Gallo

2016

Critical Reviews in Oncology/Hematology

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Abstract.Background: Multi-step cancerogenesis guides laryngeal cancer onset and it includes a wide variety of pre-cancerous lesions that are macroscopically challenging to identify and distinguish from initial cancerous foci. Since the treatment of laryngeal cancer and its precursor lesions has a great impact on important laryngeal basic functions, early detection and preoperative assessment are important for a curative and function-preserving therapy. Nowadays, despite the high number of more advanced diagnostic techniques and methods, unfortunately, it is not uncommon for different clinicians to use different nomenclature or to identify different stage for the same laryngeal lesion. From these observations, it is obvious that an instrument offering the possibility to detect precancerous lesions, early cancerous lesions, and satellite foci or second primaries would be the key to improving management and outcome in laryngeal patients. Object. Different modalities of diagnostic techniques of laryngeal lesions exist. Rather than difference between benign and obvious malignant diseases, more difficult is to detect the presence of precancerous epithelial alterations. Not all tests achieve the same diagnostic accuracy, hence this meta-analysis of literature aimed to synthesize the validity of each single diagnostic technique in identifying and staging laryngeal disease. Methods: A systematic review of literature was led searching for articles mentioning the following terms including their various combinations to maximize the yield: larynx, laryngeal precancerous lesions, laryngeal cancer, white light (WL) endoscopy, stroboscopy, contact endoscopy (CE), autofluorescence (AF), ultrasound (US), narrow band imaging (NBI), computed axial tomography (CAT), magnetic resonance imaging (MRI), positron emission tomography (PET), CAT/PET. Then, a quantitative analysis was carried on for paper published after 2005 onward, reporting a minumun series of 10 patients each study, declaring sensitivity and specificity of each diagnostic system. Results: The search identified 7215 publications, of which 3616 published after 2005, with a final results of a total of 214 articles stratified and included by our selection criteria. 42 out of 214 articles were selected for quantitative synthesis. 25 out of 41 studies had a quality score of ≥ 6 (good), 16 presented a score between 4 and 5 (fair). While objections can be raised about the pooling of different diagnostic procedures under the same group and the high level of heterogeneity in the meta-analyses, the inclusion of over 4400 laryngeal lesions makes the results fairly robust. Conclusions: A comprehensive overview of the most recent advances in laryngeal imaging technology combined with all of the information needed to interpret findings and successfully manage patients with voice disorders can be found herein. With these data, clinicians can riskstratify patients and select proper examination modalities in order to provide appropriate care. Moreover, study limitations, together with p...

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Section: Narrow Band Imaging (Nbi)mentioning

confidence: 99%

mentioning

confidence: 99%

Laryngeal preneoplastic lesions and cancer: challenging diagnosis. Qualitative literature review and meta-analysis.

Mannelli

Cecconi

Gallo

2016

Critical Reviews in Oncology/Hematology

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“…For efficiently detecting epithelial tumors in their early stages, an endoscope that can examine fine structures such as microvascular architecture and pit pattern in the mucosal surface layer with high sensitivity should be used. In order to create this type of endoscope, an NBI system based on the wavelength dependence of light was developed 10-12. In general, the depth of light penetration into the biological tissue strongly depends on the wavelength of light.…”

Section: Nbimentioning

confidence: 99%

Endoscopic Assessment of Colorectal Cancer with Superficial or Deep Submucosal Invasion Using Magnifying Colonoscopy

et al. 2013

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Among early colorectal carcinoma, endoscopic treatment is generally indicative for cases with intramucosal to submucosal (SM) superficial invasion, because cases with SM deep invasion should be treated surgically due to the risk of lymph node metastasis. It is important, therefore, to distinguish between superficial and deep SM invasion in early colorectal carcinoma prior to treatment. In this review we assessed the clinical usefulness and knack of pit pattern and narrow band imaging (NBI) diagnosis using magnifying observation. VN type pit pattern, type C3 in NBI Hiroshima classification and NBI type 3 in NBI international colorectal endoscopic (NICE) classification are useful predictors of SM deep invasion. In NBI magnifying observation evaluation of both the vascular pattern and surface pattern are important. We have to use pit pattern diagnosis and NBI magnifying diagnosis as the situation demands with the knowledge of both advantage and disadvantage in each diagnostic method.

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“…As laser surgeries increase in popularity, reliable documentation of the average extent of tumor invasion in different early glottic cancer classes and affected tissue layers is necessary to aid surgeons in procedure selection and design [11-13]. In order to remove cancerous tissues more efficiently, and with minimal damage to healthy neighboring tissues, further information must be documented and made readily available to clinicians interested in vocal fold composition and cancerous cell infiltration [14,15]. …”

Section: Introductionmentioning

confidence: 99%

Vocal fold composition and early glottic carcinoma infiltration

et al. 2012

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BackgroundCurrent imaging techniques provide only limited information pertaining to the extent of infiltration of laryngeal carcinomas into vocal fold tissue layers. Therefore, it is needed to seek the contribute to the body of knowledge surrounding examination and characterization in laryngeal carcinoma infiltration.MethodsExcised larynges were collected from 30 male laryngectomy patients with an average age of 43.5 years (ranging 36 to 55 years) and history of smoking (≥10 years) exhibiting T1, T2, or subglottal (normal vocal fold) carcinomas. Vocal folds were preserved via freezing or immersion in paraffin. The depth of the mucosa, submucosa, and muscular layers in both normal vocal folds and tumor tissues of afflicted vocal folds was measured.ResultsThe average depths of the mucosa, submucosa, and muscular layers in normal vocal folds were 0.15 ± 0.06 mm, 2.30 ± 0.59 mm, and 2.87 ± 0.88 mm, respectively. Infiltration measurements of T1 tumors showed a depth of 1.62 ± 0.51 mm and 1.32 ± 0.49 mm in frozen sections and paraffin-embedded samples, respectively. Similarly, T2 tumors showed a depth of 2.87 ± 0.68 mm and 2.58 ± 0.67 mm in frozen sections and paraffin-embedded samples, respectively. T1 and T2 tumors occupied 24.8 ± 10 and 48.5 ± 15 percent of the normal vocal fold depth, respectively.ConclusionThis data provides a baseline for estimating infiltration of laryngeal carcinomas in vocal fold tissue layers, of particular interest to surgeons. This information may be used to assess typical depths of infiltration, thus allowing for more appropriate selection of surgical procedures based on individual patient assessment.

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Narrow band imaging in the diagnosis of intra-epithelial and invasive laryngeal squamous cell carcinoma: A preliminary report of two cases

Cited by 26 publications

References 8 publications

Laryngeal preneoplastic lesions and cancer: challenging diagnosis. Qualitative literature review and meta-analysis.

Laryngeal preneoplastic lesions and cancer: challenging diagnosis. Qualitative literature review and meta-analysis.

Endoscopic Assessment of Colorectal Cancer with Superficial or Deep Submucosal Invasion Using Magnifying Colonoscopy

Vocal fold composition and early glottic carcinoma infiltration

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