For early stage laryngeal carcinoma and hypohparyngeal carcinoma (T1 and T2), transoral laser microsurgery (CO2 laser resection), open partial laryngectomy (vertical partial laryngectomy, cricohyoidoepiglottopexy, cricohyoidopexy, horizontal partial laryngectomy), partial hypopharyngectomy, radiotherapy, and transoral robotic surgery were performed for patients with proper indications.~For advanced stage laryngeal carcinoma and hypohparyngeal carcinoma (T3 and T4), surgical treatment ± postoperative adjuvant therapy, concurrent chemoradiotherapy, neoadjuvant therapy + radiotherapy/chemoradiotherapy, or neoadjuvant therapy + surgery + radiotherapy or chemoradiotherapy were performed for patients with proper indications.~This study seek to analyze and compare the clinical ouctomes of different treatments for the same T stage disease of LC and HPC.~The main end events involving overall survival rate, disease specific survival rate, and laryngeal function preservation rate were analyzed in this study. Beside, the events of disease free survival rate, local control rate, and regional control rate were assessed.
For early stage laryngeal carcinoma and hypohparyngeal carcinoma (T1 and T2), transoral laser microsurgery, open partial laryngectomy, radiotherapy, and transoral robotic surgery were performed according to NCCN guidelines (2020).~For advanced stage laryngeal carcinoma and hypohparyngeal carcinoma (T3 and T4), surgical treatment ± postoperative adjuvant therapy, chemoradiotherapy, neoadjuvant therapy + radiotherapy/chemoradiotherapy, or neoadjuvant therapy + surgery + radiotherapy or chemoradiotherapy performed according to NCCN guidelines (2020).~This study plan to analyze the clinical ouctomes of different treatment for the same T stage disease. The overall survival rate, disease specific survival, disease free survival, local control, regional control, and laryngeal function preservation rate were analyzed in this study.