Abstract:Abstract: Objective?To explore the clinical application of electronic laryngoscopy for the biopsy of throat tissue and analyze the pathological results.?Methods?A retrospective analysis of 199 cases with vocal leukoplakia, laryngeal neoplasms, and hypopharyngeal neoplasms were performed under electronic laryngoscopy. Tissue biopsy was performed after surface anesthesia by electronic laryngoscopy, and pathological examinations were performed. The gender, age distribution, and pathological significance of the three diseases were analyzed. Then evaluate the value and significance of biopsy throat masses under electronic laryngoscopy.?Results?There were significantly more males than females in the three types of disease. The age distribution of patients with vocal fold leukoplakia was significantly younger than that of the laryngeal and hypopharyngeal neoplasms (P?0.05). Pathological results of vocal cord leukoplakia in 67 cases: 35 cases (52.24%) with chronic inflammatory squamous epithelial hyperplasia, 17 cases (25.37%) with low grade intraepithelial neoplasia, and 12 cases (17.91%) with high grade intraepithelial neoplasia, suspicious infiltrating carcinoma 2 cases (2.99%), one case of invasive carcinoma (1.49%). The pathological results of 97 cases of laryngeal neoplasms were: 35 cases (36.08%) with high grade intraepithelial neoplasia/in situ carcinoma, 14 cases (14.43%) with suspicious invasive carcinoma, and 48 cases (49.48%) with invasive carcinoma. Pathological findings of 35 cases of hypopharyngeal neoplasms: 6 cases (17.14%) with high grade intraepithelial neoplasia/in situ carcinoma, 4 cases (11.43%) with suspected invasive carcinoma, and 25 cases (71.43%) with invasive carcinoma.?Conclusions?The electronic laryngoscope underwent surface anesthesia for biopsy of throat, low risk of anesthesia, and flexible operation, which significantly reduced the economic cost of the patient and provided a pathological basis for follow-up treatment. It is a convenient, rapid, and effective biopsy method.