This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Esophageal Motility Disorders, Subject name: Surgery
Cork screw esophagus is seen in - 
Select and explain. 
A. Diffuse esophageal spasm, B. Achalasia cardia, C. CA esophagus, D. Globus hystericus
A: Diffuse esophageal spasm
Answer: A: Diffuse esophageal spasm 
Explanation: Ans. is 'a' i.e., Diffuse esophageal spasm o Radiological appearances of diffuse esophageal spasm have been described as:Curling esophagusCorkscrew esophagus orPseudodiverticulosiso Diffuse esophageal spasm is a motor disorder of esophagus characterized by repetitive simultaneous non-peristal tic contractions.o Symptoms are substernal chest pain and/or dysphagiao Diagnosed by manometry