Supraglottic laryngectomy is a surgical procedure used to treat cancers located in the supraglottic region of the larynx. This part of the larynx is situated above the vocal cords and includes structures such as the epiglottis, aryepiglottic folds, and false vocal cords. The aim of the surgery is to remove cancerous tissues while preserving as much of the larynx as possible to maintain functions like speech and swallowing.