Introduction: The esophagus evaluation is fundamental in patients with dysphagia, globus, head and neck cancer, suspicion of strange body, cancer screening, and reflux. The traditional esophagoscopy is performed using large diameter endoscopies and sedation. Ultrathin transnasal endoscopy with smaller diameter allows the otorhinolaryngologists and gastroenterologists to evaluate completely the esophagus in their office without sedation, using the transnasal route.