A female patient has dysphagia, intermittent epigastric pain. On endoscopy, the oesophagus was dilated above and narrow at the bottom. Treatment is

Achalasia typically presents with dysphagia, although pain (often mistaken for reflux) is common in the early stages.Dilated oesophagus with acute narrowing in LES region is noted.Treatment is by either endoscopic dilatation or surgical myotomyBailey and Love 26th edition pg: 1015