system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Bird beak appearance on X-ray is a feature of-
assistant
The correct answer is  Ans. is 'a' i.e., Achlasia cardia * "Bird beak appearance on barium study is seen in achlasia cardia.Important esophageal signs on radiographySignConditionRat tail appearance of esophagusEsophageal carcinomaMega-esophagus (sigmoid esophagus)"Bird beak" appearanceHurst phenomenonAchlasia cardiaYo-Yo motion of barium"Corkscrew" appearance (esophageal curling)Rosary-bead/sheikh kebab configurationChain of bead appearanceDiffuse esophageal spasm