Achalasia - with bird beak sign
36 years old female with longstanding sensation of food "stuck in her chest" and halitosis.
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Rapid sequence fluoroscopic images from a barium esophagogram reveal a persistently dilated esophagus with an air-fluid level at the lower esophagus and classic "bird-beaking" at the gastroesophageal (GE) junction, despite normal primary peristaltic waves.
Achalasia can be divided into primary and secondary (pseudoachalasia):
- primary achalasia is a smooth muscle motility disorder of the esophagus.
- secondary achalasia is abnormal stricturing of the gastroesophageal junction, such as tumor compression or Chagas disease.
Esophagogram is important in the evaluation of motility, reflux, and aspiration.
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