Surgery All of the following are true about achalasia cardia except: March 2012 A Bird beaks appearance B Absent air bubble in stomach C Decreased lower oesophageal sphincter tone D Absent peristalsis in the body of oesophagus 💡 Explanation All of the following are true about achalasia cardia except: March 2012 ✓ Correct Answer: C. Decreased lower oesophageal sphincter tone