AJR ARRS: Your Link to CME
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Fig. 1. —50-year-old man with primary achalasia. Spot radiograph from double-contrast barium study shows 1-cm-long smooth, tapered narrowing (straight arrow) of distal esophagus with esophageal diameter proximally of 6 cm. Note standing column of barium (curved arrow) on this upright view. Short length of narrowed segment is characteristic of primary achalasia.





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