FEES and VFSS may be helpful in the diagnosis of<unk> . The FEES uses a transnasal laryngoscope, and swallowing is directly evaluated by using measured quantities of food colored with blue liquid dye and compared before and after swallowing.
Dysphagia endoscopy
Achalasia ultrasound
Dysphagia MRI
Dysphagia CT
Achalasia CT
Esophageal stricture CT
Odynophagia MRI
Achalasia physical examination