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1.
Braz. j. otorhinolaryngol. (Impr.) ; 85(2): 228-236, Mar.-Apr. 2019. tab, graf
Article in English | LILACS | ID: biblio-1001551

ABSTRACT

Abstract Introduction: Trans-oral laser microsurgery is an established technique for the treatment of early and moderately advanced laryngeal cancer. Objective: The authors intend to test the usefulness of narrow-band imaging in the intraoperative assessment of the larynx mucosa in terms of specifying surgical margins. Methods: Forty-four consecutive T1-T2 glottic cancers treated with trans-oral laser microsurgery Type I-VI cordectomy were presented. Suspected areas (90 samples/44 patients) were biopsied under the guidance of narrow-band imaging and white light and sent for frozen section. Results: Our study revealed that 75 of 90 (83.3%) white light and narrow-band imaging-guided samples were histopathologically positive: 30 (40%) were confirmed as carcinoma in situ or invasive carcinoma and 45 (60%) as moderate to severe dysplasia. In 6 patients mucosa was suspected only in narrow-band imaging, with no suspicion under white light. Thus, in these 6 patients 18/90 (20%) samples were taken. In 5/6 patients 16/18 (88.8%) samples were positive in frozen section: in 6/18 (33.3%) carcinoma (2 patients), 10/18 (66.6%) severe dysplasia was confirmed (3 patients). In 1 patient 2/18 (11.1%) samples were negative in frozen section. Presented analysis showed, that sensitivity, specificity and accuracy of white light was 79.5%, 20% and 71.1% respectively, while narrow-band imaging was 100%, 0.0% and 85.7%, respectively. Conclusion: The intraoperative use of narrow-band imaging proved to be valuable in the visualization of suspect areas of the mucosa. Narrow-band imaging confirms the suspicions undertaken in white light and importantly, it showed microlesions beyond the scope of white light.


Resumo Introdução: A microcirurgia transoral a laser é uma técnica bem estabelecida para o tratamento de câncer de laringe inicial e moderadamente avançado. Objetivo: Verificar a utilidade da imagem de banda estreita na avaliação intraoperatória da mucosa laríngea na especificação das margens cirúrgicas. Método: Foram avaliados 44 cânceres glóticos T1-T2 consecutivos, tratados com cordectomia Tipo I-VI, por microcirurgia transoral a laser. As áreas suspeitas (90 amostras/44 pacientes) foram submetidas a biopsia e avaliadas através de imagens de banda estreita e luz branca e enviadas para cortes por congelação. Resultados: Nosso estudo revelou que 75 (83,3%) das 90 amostras apresentaram histopatologia positiva na análise com luz branca e imagens de banda estreita: 30 (40%) foram confirmadas como carcinoma in situ ou carcinoma invasivo e 45 (60%) como displasia moderada a grave. Em seis pacientes, a mucosa apresentou-se suspeita apenas na imagem de banda estreita, sem suspeita sob luz branca. Assim, nesses seis pacientes 18/90 (20%) amostras foram colhidas. Em 5/6 pacientes, 16/18 (88,8%) amostras mostraram resultado positivo na análise de congelação: em 6/18 (33,3%) amostras foi confirmado carcinoma (dois pacientes) e em 10/18 (66,6%) foi confirmada displasia grave (três pacientes). Em um paciente, 2/18 (11,1%) as amostras mostraram resultado negativo na congelação. A análise apresentada mostrou que a sensibilidade, a especificidade e a acurácia da luz branca foram de 79,5%, 20% e 71,1%, respectivamente, enquanto a imagem de banda estreita apresentou como resultados 100%, 0,0% e 85,7%, respectivamente. Conclusão: O uso intraoperatório de imagem de banda estreita provou ser valioso na identificação de áreas suspeitas da mucosa, confirmou as suspeitas verificadas na análise com luz branca e, o que é mais importante, identificou microlesões além do alcance da luz branca.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Aged, 80 and over , Carcinoma/surgery , Carcinoma/diagnostic imaging , Laryngeal Neoplasms/surgery , Laryngeal Neoplasms/diagnostic imaging , Laser Therapy/methods , Narrow Band Imaging/methods , Microsurgery/methods , Vocal Cords/surgery , Vocal Cords/diagnostic imaging , Carcinoma/pathology , Laryngeal Neoplasms/pathology , Reproducibility of Results , Analysis of Variance , Statistics, Nonparametric , Disease-Free Survival , Natural Orifice Endoscopic Surgery/methods , Margins of Excision , Intraoperative Period
2.
Arq. gastroenterol ; 54(3): 250-254, July-Sept. 2017. tab, graf
Article in English | LILACS | ID: biblio-888209

ABSTRACT

ABSTRACT BACKGROUND The diagnosis of corrosion cancer should be suspected in patients with corrosive ingestion if after a latent period of negligible symptoms there is development of dysphagia, or poor response to dilatation, or if respiratory symptoms develop in an otherwise stable patient of esophageal stenosis. Narrow Band Imaging detects superficial squamous cell carcinoma more frequently than white-light imaging, and has significantly higher sensitivity and accuracy compared with white-light. OBJECTIVE To determinate the clinical applicability of Narrow Band Imaging versus Lugol´s solution chromendoscopy for detection of early esophageal cancer in patients with caustic/corrosive agent stenosis. METHODS Thirty-eight patients, aged between 28-84 were enrolled and examined by both Narrow Band Imaging and Lugol´s solution chromendoscopy. A 4.9mm diameter endoscope was used facilitating examination of a stenotic area without dilation. Narrow Band Imaging was performed and any lesion detected was marked for later biopsy. Then, Lugol´s solution chromoendoscopy was performed and biopsies were taken at suspicious areas. Patients who had abnormal findings at the routine, Narrow Band Imaging or Lugol´s solution chromoscopy exam had their stenotic ring biopsied. RESULTS We detected nine suspicious lesions with Narrow Band Imaging and 14 with Lugol´s solution chromendoscopy. The sensitivity and specificity of the Narrow Band Imaging was 100% and 80.6%, and with Lugol´s chromoscopy 100% and 66.67%, respectively. Five (13%) suspicious lesions were detected both with Narrow Band Imaging and Lugol's chromoscopy, two (40%) of these lesions were confirmed carcinoma on histopathological examination. CONCLUSION Narrow Band Imaging is an applicable option to detect and evaluate cancer in patients with caustic /corrosive stenosis compared to the Lugol´s solution chromoscopy.


RESUMO CONTEXTO A suspeita do câncer de esôfago na lesão cáustica ocorre quando os pacientes com estenoses previamente estáveis, após um período latente sem sintomas, apresentam disfagia, baixa resposta as dilatações ou sintomas respiratórios. A cromoscopia com luz de banda estreita detecta o câncer superficial de esôfago mais frequentemente que a luz branca, com alta sensibilidade e acurácia. OBJETIVO Determinar a aplicabilidade clínica da luz de banda estreita versus a cromoscopia vital com Lugol na detecção do câncer precoce de esôfago em pacientes com lesões cáusticas. MÉTODOS Um total de 38 pacientes, entre 28 e 84 anos, foram alocados seguidamente e submetidos à cromoscopia com luz de banda estreita e com Lugol. Um gastroscópio de 4,9 mm de diâmetro foi usado para facilitar o exame da área estenosada, sem necessidade de dilatação. A cromoscopia com luz de banda estreita era realizada primeiro e as áreas suspeitas anotadas. Depois, a cromoscopia com Lugol era realizada e as áreas suspeitas biopsiadas. RESULTADOS Detectamos nove lesões suspeitas com a luz de banda estreita e 14 com o Lugol. A sensibilidade e especificidade da cromoscopia com luz de banda estreita foi de 100% e 80,6%, e a do Lugol foi de 100% e 66,67% respectivamente. Cinco (13%) lesões suspeitas foram detectadas coincidentemente pelos dois métodos, sendo duas (40%) com diagnóstico anatomopatológico de câncer de esôfago. CONCLUSÃO A cromoscopia com luz de banda estreita é opção concreta para o diagnóstico de câncer em pacientes com estenoses esofágicas por corrosões cáusticas, comparado a cromoscopia com Lugol.


Subject(s)
Humans , Male , Female , Adult , Aged , Aged, 80 and over , Esophageal Neoplasms/diagnosis , Esophageal Neoplasms/chemically induced , Caustics/adverse effects , Esophagoscopy/methods , Coloring Agents , Narrow Band Imaging/methods , Iodides , Cross-Sectional Studies , Sensitivity and Specificity , Cross-Over Studies , Constriction, Pathologic , Middle Aged
3.
Rev. otorrinolaringol. cir. cabeza cuello ; 77(2): 197-203, jun. 2017. ilus, tab
Article in Spanish | LILACS | ID: biblio-902763

ABSTRACT

En los últimos años, se está utilizando la fibrolaringoscopía con imagen de banda estrecha (NBI) como técnica novedosa para observar el patrón específico de microvas-cularización de una lesión concreta a evaluar. Es conocida por su utilidad en el diagnóstico de otras lesiones de vías aerodigestivas superiores, fundamentalmente laríngea y digestiva. Los melanomas mucosos son tumores infrecuentes, que suelen localizarse a nivel del área rinosinusaly que comportan un manejo y pronóstico distinto con respecto a los melanomas cutáneos. Se presenta el caso clínico de una paciente mujer con anamnesis, exploración y fibrolaringoscopía con imagen de banda estrecha, compatible con melanoma mucoso de fosa nasal izquierda. El tratamiento realizado fue quirúrgico, sin necesidad de tratamiento coadyuvante, y no presenta evidencia de enfermedad al año postseguimiento.


In recent years, it is being used fibrolaryngoscopy with narrowband image (NBI) as a novel technique to observe the specific pattern of microvasculature of a particular lesion. NBI is known for its usefulness in the diagnosis of other lesions of the upper aerodigestive tract, (primarily laryngeal and digestive lesions). Mucosal melanomas are rare tumors, which are usually located at the level of rhino-sinusal area and involving a different prognosis and management regarding cutaneous melanomas. We report a female patient case with anamnesis, clinical examination and NBI compatible with mucosal melanoma of left nostril. Surgical treatmentwas performed without adjuvant therapy, and there is no evidence of disease at one year post-monitoring.


Subject(s)
Humans , Female , Aged , Paranasal Sinus Neoplasms/diagnosis , Endoscopy/methods , Narrow Band Imaging/methods , Melanoma/diagnosis , Nasal Mucosa/pathology , Paranasal Sinus Neoplasms/surgery , Melanoma/surgery , Nasal Mucosa/surgery
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