Abstract
Laryngeal schwannoma is a rare clinical benign neurogenic tumor that originated in the larynx. Large laryngeal schwannoma can cause foreign body sensation in the pharynx and swallowing obstruction. Clinical symptoms includehoarseness and dyspnea. The enhanced CT scan illustrates that the localized mass is isolated, with clear boundary with the surrounding tissues in the larynx. A 68-year-old woman presented with a swallowing discorder,endoscopy demonstrated a smooth mass of the left aryepiglottic fold.The patient then underwent endoscopy surgey supported by the low temperature plasma instead of an open incision.