All of the following are Hypomotility disorders of oesophagus except: (A) Nut cracker oesophagus, (B) Achalasia cardia, (C) Gastroesophageal reflux, (D) Scleroderma
Answer is A. MOTILITY DISORDERS OF OESOPHAGUS They can be divided into: 1. Hypermotility disorder:- e.g. cricopharyngeal spasm, diffuse oesophageal spasm, nut cracker oesophagus. 2. Hypomotility disorders:- e.g. cardiac achalasia, gastrooesophageal reflux, scleroderma, amyotrophic lateral sclerosis. Ref:- Dhingra; pg num:-344