Abstract

Background and Objective: A wide variety of benign and malignant lesions from the squamous and mesenchymal epithelium occur in the larynx. Among these vocal cord polyps,nodules, papilloma, and squamous cell carcinoma have significant outbreak. The aim of this study was to compare the accuracy of diagnosis based on the stroboscopy and confirmation by the pathological report. Materials and Methods: This is an analytic epidemiological study on 139 patients with complaint of hoarseness. The symptoms and physical examination were taken from patients. Stroboscopic technique was done for them. The biopsy taken in a case of mass form lesions. Pathological diagnosis was reported in patients’ form. Stroboscopic study and pathologic report were compared. Collected data was analyzed using  SPSS software (version 22). Results: Laryngeal mass were divided into four groups: malignancy, nodule, ployp and miscellaneous. In stroboscopic study , malignancy group (25 cases =18.0%), Nodule group( 83 cases=59.7%), Ployp  group (27 cases=19.4%), and in miscellaneous group(4 cases =2.9%) were defined. And according to the  pathological report  in malignancy group(25 cases =18.0%),, Nodule group( 84 cases=60.4%), Ployp group (14 cases=10.1%) and in miscellaneous group (16 cases =11.5%) ,were defined. Conclusion: The stroboscopy can be very useful technique in the initial study of laryngopharyngeal lesions. for diagnosis of laryngopharyngeal  tumoral lesions, pathological report is the gold standard. But still biopsy is a prerequisite for the pathological report, in other words, surgical intervention.