This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oesophagus, Subject name: Surgery
Cork-screw appearance of esophagus: 
Select and explain. 
A. Achalasia cardia, B. Cancer esophagus, C. Schatzki ring, D. DES
D: DES
Answer: D: DES 
Explanation: Ans. (d) DESRef: Bailey and Love 26th edition, Page 1017 Diffuse Esophageal Spasm:* Hyper Motility disorder characterized by chest pain and dysphagia* Most common finding is cork screw esophagus in lower 2/3rd esophagus commonly.* Medical treatment is primary: Calcium channel blockers, vasodilators, endoscopic dilatation* Long myotomy up to arch of aorta is done in cases with dysphagia only. Chest pain will not improve with surgery