Figure 1 - Esophagrams of a patient with early achalasia pre- and posttreatment.
From the following article
Surgical treatment for achalasia
Jedediah A. Kaufman, Dave R. Lal and Brant K. Oelschlager
GI Motility online (2006)
doi:10.1038/gimo53
a: Initial esophagram of patient with early achalasia and no esophageal dilation. b: Patient after 2 years of nonoperative treatment. Note significant esophageal dilation and air-fluid level compared to pretreatment. c: End-stage achalasia with sigmoid or megaesophagus.
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