Abstract
Dysplasia and squamous cell carcinoma of the upper aerodigestive tract show significant neoangiogenesis appearing as subepithelial and epithelial microvascular irregularities that can be detected by Image-Enhanced Endoscopy such as Narrow Band Imaging and Storz Professional Image Enhancement System. In the present study, the most advanced endoscopic enhancement systems were coupled with Contact Endoscopy (Enhanced Contact Endoscopy). This original method improved the identification and the understanding of the neoangiogenetic changes of the chorion in 42 patients with leukoplakia, erythroplakia, and leuko-erythroplakia of the oral cavity and oropharynx. The physiologic and pathologic mucosa was described in five obvious vascular patterns observed at Enhanced Contact Endoscopy ranging from normal to squamous cell carcinoma, passing through inflammation, hyperplasia, and dysplasia. Each vascular pattern was then compared to histology, showing that the microvascular architectural changes seen with Enhanced Contact Endoscopy are almost constant. Sensitivity, specificity, positive predictive value, and negative predictive value in the differentiation between healthy mucosa and inflammation versus pathologic hyperplasia, dysplasia, and carcinoma were, respectively, 96.6, 93.3, 98.2, 87.5, and 95.9 %. Sensitivity and specificity were 100 % in differentiation between non-malignant lesions versus squamous cell carcinoma. Our preliminary experience shows that accuracy of Image-Enhanced Endoscopy in the diagnosis of precancerous lesions and squamous cell carcinoma of the oral cavity and oropharynx can be increased if associated to Contact Endoscopy.
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Gratefully acknowledges Sardinia Regional Government for the financial support (P.O.R. Sardegna F.S.E. Operational Programme of the Autonomous Region of Sardinia, European Social Fund 2007–2013—Axis IV Human Resources, Objective l.3, Line of Activity l.3.1 “Avviso di chiamata per il finanziamento di Assegni di Ricerca.”
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Carta, F., Sionis, S., Cocco, D. et al. Enhanced contact endoscopy for the assessment of the neoangiogenetic changes in precancerous and cancerous lesions of the oral cavity and oropharynx. Eur Arch Otorhinolaryngol 273, 1895–1903 (2016). https://doi.org/10.1007/s00405-015-3698-2
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DOI: https://doi.org/10.1007/s00405-015-3698-2