Journal of Neurogastroenterology and Motility : eISSN 2093-0887 / pISSN 2093-0879

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Fig. 3. Serial change of a representative advanced sigmoid-type (aSg) achalasia case on barium esophagogram. (A) Before POEM, esophagogram indicated aSg achalasia with typical bird beak sign. (B) Six months after POEM, the angle of esophageal tortuosity became obtuse, opening from 86.6° to 101.4°. The diameter of the esophageal body narrowed from 60 mm to 55 mm, and the diameter of the esophagogastric junction opening widened from 4.5 mm to 10 mm. (C) One year after POEM, the angle of esophageal tortuosity further expanded to 107.4°.
Journal of Neurogastroenterology and Motility 2020;26:67~73 https://doi.org/10.5056/jnm19144
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