ROLE OF NARROW BAND IMAGING IN DIAGNOSIS AND DIODE LASER IN MANAGEMENT OF PREMALIGNANT LESIONS OF ORAL CAVITY AND ORO PHARYNX

Abstract

Head neck tumors are Heterogenous group of cancers arising from different anatomical parts with different predisposing factors prevalence and outcomes. The most common type of cancer in the oral cavity and oropharynx is called squamous cell carcinoma. Narrow band imaging (NBI) is one of the most frequently used optical digital methods of performing non-invasive image-enhanced endoscopy . The gold standard for management of the clinically more suspicious high-grade premalignant lesions is excision or laser ablation. Laser is an advanced technology receiving a lot of attention in research because of its advantages compared to other ablation techniques, such as higher efficacy, safety and precision, and shorter time period treatment needed to achieve the same result