MATERIALS METHODS
The study was approved by the institutional ethics committee and performed in accordance with the good clinical practice, and applicable regulatory requirements. Informed written consents were obtained from all participants.
The study was conducted between October 2017 and October 2018 in a university hospital in the department of otorhinolaryngology. The study included 40 patients who presented with a laryngeal mass and underwent microlaryngoscopy under general anesthesia. Patients under 18 years of age were not included.