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
Corkscrew esophagus is seen in - 
Select and explain. 
A. Diffuse esophageal spasm, B. Achalasia Cardia, C. Carcinoma of esdophagus, D. Esophageal web
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 esophagus# Corkscrew esophagus or# Pseudodiverticulosis