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What is Bird beak appearance of esophagus: and explain in detail?
Ans. (a) Achalasia cardiaRef: Bailey and Love 26th edition, Page 1014Interesting Barium swallow findings in esophagus:* Bird beak appearance: Achalasia* Rat tail appearance: Cancer esophagus more commonly* Hurst phenomenon: Achalasia* Cork screw appearance: DES* Postcricoid web: Plummer Winson syndrome* Naclerio V sign (Pneumo mediastinum in Xray) - Esophageal Perforation