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What is Investigation of choice for Zenker&;s diveiculum is - and explain in detail?
Barium swallow is the contrast study from oral cavity upto the fundus of stomach. Indications : Dysphagia and obstruction Motility disorders of esophagus. Assessment of site of esophageal perforation Zenker's diveiculum and cricoid webs. Contraindications : Tracheo esophageal fistula Esophageal perforation