“…In 11 patients, a diagnostic endoscopy followed by a biopsy was carried out (Table ), and in 29 patients, the total resection of a lesion or tumor was the goal of the surgical procedure (Table ). In the first 15 patients, the Feyh–Kastenbauer retractor (Gyrus ACMI, Southborough, MA) was used for exposure of the pharynx and larynx, whereas in the following 25 cases, a newly designed retractor (Flex Retractor System; Medrobotics) was applied. In procedures in the anterior anatomic neck regions, such as the base of the tongue, vallecula, or epiglottis, we preferred a transnasal intubation, placing the intubation tube at the posterior pharyngeal wall in order to achieve a broad exposure (Fig.…”