CT scan may show dilatation of the esophagus with air fluid levels in long-standing cases. CT scan may be used to exclude pseudoachalasia, or achalasia symptoms resulting from a different cause, usually esophageal cancer.
Achalasia CT
Achalasia MRI
Achalasia ultrasound
Achalasia physical examination
Achalasia x ray
Dysphagia MRI
Esophageal stricture CT
Zenker's diverticulum physical examination